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HUMAN POPULATION, CARRYING CAPACITY
          & RESOURCE USE
                              Topic 3




      By Peter Stanley, International School of Tanganyika, 2008
HUMAN POPULATION, CARRYING CAPACITY
          & RESOURCE USE
                              Topic 3




      By Peter Stanley, International School of Tanganyika, 2008
3.1 POPULATION DYNAMICS
         © Peter Stanley, 2009
3.1.1 Exponential growth
 “Describe the nature and explain the implications of exponential growth in human populations.” (3)
3.1.1 Exponential growth
 “Describe the nature and explain the implications of exponential growth in human populations.” (3)
3.1.1 Exponential growth
 “Describe the nature and explain the implications of exponential growth in human populations.” (3)
3.1.1 Exponential growth
 “Describe the nature and explain the implications of exponential growth in human populations.” (3)
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
      • Pollution
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
      • Pollution
      • more hosts for disease outbreaks
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
      • Pollution
      • more hosts for disease outbreaks
What are the limiting factors that may eventually stem our growth?
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
      • Pollution
      • more hosts for disease outbreaks
What are the limiting factors that may eventually stem our growth?
      • Shortage of food
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
      • Pollution
      • more hosts for disease outbreaks
What are the limiting factors that may eventually stem our growth?
      • Shortage of food
      • Disease
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
      • Pollution
      • more hosts for disease outbreaks
What are the limiting factors that may eventually stem our growth?
      • Shortage of food
      • Disease
      • Pollution
3.1.1 Exponential growth
   “Describe the nature and explain the implications of exponential growth in human populations.” (3)
Rapid, increasing growth:
22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
What are the implication of our population growing exponentially?
      • Using resources
      • War (water, oil, food, land)
      • Pollution
      • more hosts for disease outbreaks
What are the limiting factors that may eventually stem our growth?
      •   Shortage of food
      •   Disease
      •   Pollution
      •   Shortage of space (territory) factors
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            • Crude birth rate (CBR): natality (births) per 1000 people




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            • Crude birth rate (CBR): natality (births) per 1000 people




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            • Crude birth rate (CBR): natality (births) per 1000 people




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            • Crude birth rate (CBR): natality (births) per 1000 people
            • Crude death rate (CDR): deaths per 1000 people




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            • Crude birth rate (CBR): natality (births) per 1000 people
            • Crude death rate (CDR): deaths per 1000 people
            • Fertility: number of children per woman in her lifetime




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            •   Crude birth rate (CBR): natality (births) per 1000 people
            •   Crude death rate (CDR): deaths per 1000 people
            •   Fertility: number of children per woman in her lifetime
            •   Doubling time: how long it takes for population to double




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            •   Crude birth rate (CBR): natality (births) per 1000 people
            •   Crude death rate (CDR): deaths per 1000 people
            •   Fertility: number of children per woman in her lifetime
            •   Doubling time: how long it takes for population to double
                                               • 70 / overall growth rate (it’s a math thing...)




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
“Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
     natural increase rate.” (3)


            •   Crude birth rate (CBR): natality (births) per 1000 people
            •   Crude death rate (CDR): deaths per 1000 people
            •   Fertility: number of children per woman in her lifetime
            •   Doubling time: how long it takes for population to double
                                               • 70 / overall growth rate (it’s a math thing...)
            • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!)




click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
  “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
       natural increase rate.” (3)


              •   Crude birth rate (CBR): natality (births) per 1000 people
              •   Crude death rate (CDR): deaths per 1000 people
              •   Fertility: number of children per woman in her lifetime
              •   Doubling time: how long it takes for population to double
                                                 • 70 / overall growth rate (it’s a math thing...)
              • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!)


If... Tanzania has a pop. of 1,000,000 and 15,000
       are born last year... what was the CBR?




  click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
  “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
       natural increase rate.” (3)


              •   Crude birth rate (CBR): natality (births) per 1000 people
              •   Crude death rate (CDR): deaths per 1000 people
              •   Fertility: number of children per woman in her lifetime
              •   Doubling time: how long it takes for population to double
                                                 • 70 / overall growth rate (it’s a math thing...)
              • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!)


If... Tanzania has a pop. of 1,000,000 and 15,000
       are born last year... what was the CBR?

      15,000                          CBR
                           =
    1,000,000                         1000



  click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
  “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
       natural increase rate.” (3)


              •   Crude birth rate (CBR): natality (births) per 1000 people
              •   Crude death rate (CDR): deaths per 1000 people
              •   Fertility: number of children per woman in her lifetime
              •   Doubling time: how long it takes for population to double
                                                 • 70 / overall growth rate (it’s a math thing...)
              • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!)


If... Tanzania has a pop. of 1,000,000 and 15,000
       are born last year... what was the CBR?

      15,000                          CBR
                           =
    1,000,000                         1000

              CBR = 15
  click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
  “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
       natural increase rate.” (3)


              •   Crude birth rate (CBR): natality (births) per 1000 people
              •   Crude death rate (CDR): deaths per 1000 people
              •   Fertility: number of children per woman in her lifetime
              •   Doubling time: how long it takes for population to double
                                                 • 70 / overall growth rate (it’s a math thing...)
              • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!)


If... Tanzania has a pop. of 1,000,000 and 15,000                    If... Afganistan has a growth rate of 4.8%, how
       are born last year... what was the CBR?                       long will it take for the population to double?
      15,000                          CBR
                           =
    1,000,000                         1000

              CBR = 15
  click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
  “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
       natural increase rate.” (3)


              •   Crude birth rate (CBR): natality (births) per 1000 people
              •   Crude death rate (CDR): deaths per 1000 people
              •   Fertility: number of children per woman in her lifetime
              •   Doubling time: how long it takes for population to double
                                                 • 70 / overall growth rate (it’s a math thing...)
              • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!)


If... Tanzania has a pop. of 1,000,000 and 15,000                    If... Afganistan has a growth rate of 4.8%, how
       are born last year... what was the CBR?                       long will it take for the population to double?
      15,000                          CBR                                                                    70
                           =                                         Doubling Time               =
    1,000,000                         1000                                                                   4.8

              CBR = 15
  click to read more about this subject                                                click to find the data on any country
3.1.2 Calculating population changes
  “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and
       natural increase rate.” (3)


              •   Crude birth rate (CBR): natality (births) per 1000 people
              •   Crude death rate (CDR): deaths per 1000 people
              •   Fertility: number of children per woman in her lifetime
              •   Doubling time: how long it takes for population to double
                                                 • 70 / overall growth rate (it’s a math thing...)
              • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!)


If... Tanzania has a pop. of 1,000,000 and 15,000                    If... Afganistan has a growth rate of 4.8%, how
       are born last year... what was the CBR?                       long will it take for the population to double?
      15,000                          CBR                                                                    70
                           =                                         Doubling Time               =
    1,000,000                         1000                                                                   4.8

              CBR = 15                                                                  14.5 years
  click to read more about this subject                                                click to find the data on any country
Data Analysis
World birth rates ranked from highest to lowest
World birth rates ranked from highest to lowest
1
         Democratic Republic of the      52
        Haiti
     27.9            104
       Saint Lucia
          19.1
                                                                                                                           149
       Australia
 12.4
Congo
 49.6                                53
        Honduras
 7.9
                                                                 2               105
       Vietnam
 18.8
                                                                                                                           150
       Martinique
2
         Guinea-Bissau
     49.6         54
        Zimbabwe
           27.9   106
       Colombia
18.7
                                                                                                                           ( France)
 12.4
3
         Liberia
 49.6                   55
        Bolivia
 27.3              107
       Indonesia
18.7
                                                                                                                           151
       Cyprus
 12.2
4
         Niger
 49.0                     56
        Tajikistan
27.3            108
       Bhutan
 18.5
                                                                                                                           152
       France
5
         Afghanistan
       48.2         57
        Pakistan
 27.2             109
       Guam ( United
                                                                                                                           (metropolitan)
       12.2
6
         Mali
      48.1                 58
        Laos
      26.8            States)
 18.5
                                                                                                                           153
       United Kingdom
 12.0
7
         Angola
 47.3                    59
        Syria
     26.7            110
       Mongolia
18.4
                                                                                                                           154
       Norway
 12.0
8
         Burundi
 47.1                   60
        Cambodia
           26.4   111
       Turkey
 18.4
                                                                                                                           155
       Luxembourg
        11.5
9
         Uganda
 46.6                    61
        Jordan
 25.9               112
       French Polynesia
                                                                                                                           156
       Moldova
 11.4
10
        Sierra Leone
      46.2         62
        Federated States of        ( France)
 18.3
                                                                                                                           157
       Sweden
 11.3
11
        Chad
      45.5                 Micronesia
           25.9            113
       Lebanon
 18.2
                                                                                                                           158
       Denmark
11.2
12
        Rwanda
 44.5                    63
        Philippines
        25.8   114
       Myanmar
18.2
                                                                                                                           159
       Finland
 11.2
13
        Burkina Faso
      44.0         64
        Gabon
 25.7                115
       Grenada
 18.0
                                                                                                                           160
       Netherlands
       11.1
14
        Somalia
 42.9                   65
        Namibia
 25.7              116
       Réunion ( France)
 18.0
                                                                                                                           161
       Barbados
11.0
15
        Timor-Leste
       42.1         66
        Tonga
 25.6                117
       Kuwait
 17.9
                                                                                                                           162
       Republic of
16
        Malawi
 40.7                    67
        Belize
 25.2               118
       Costa Rica
           17.8
                                                                                                                           Macedonia
            10.9
17
        Benin
 40.2                     68
        Botswana
24.9              119
       Argentina
17.5
                                                                                                                           163
       Estonia
 10.8
18
        Nigeria
 39.9                   69
        Nicaragua
          24.9   120
       Bahrain
 17.1
                                                                                                                           164
       Georgia
 10.8
19
        Guinea
 39.8                    70
        Saudi Arabia
       24.9   121
       Guyana
 17.1
                                                                                                                           165
       Spain
     10.8
20
        Mozambique
        39.5         71
        Bangladesh
         24.8   122
       Bahamas
 16.9
                                                                                                                           166
       Russia
 10.7
21
        Eritrea
 39.3                   72
        Paraguay
 24.8             123
       Tunisia
 16.7
                                                                                                                           167
       Portugal
 10.5
22
        Zambia
 39.3                    73
        Samoa
 24.7                124
       New Caledonia
                                                                                                                           168
       Belgium
 10.4
23
        Kenya
 39.2                     74
        Egypt
     24.2            ( France)
 16.4
                                                                                                                           169
       Canada
 10.3
24
        Tanzania
 39.0                  75
        French Guiana              125
       Albania
 16.3
                                                                                                                           170
       Cuba
      10.3
25
        Equatorial Guinea
 38.5         ( France)
 23.9                       126
       Azerbaijan
           16.2
                                                                                                                           171
       Slovakia
 10.0
26
        Yemen
 38.3                     76
        Dominican                  127
       Qatar
 16.2
                                                                                                                           172
       Malta
     9.8
27
        Ethiopia
 38.2                  Republic
 23.5                        128
       United Arab
                                                                                                                           173
       Romania
 9.8
28
        Togo
      36.8                 77
        Libya
     23.4            Emirates
 16.2
                                                                                                                           174
       Poland
 9.5
29
        Madagascar
        36.4         78
        Maldives
 23.4             129
       Ireland
 15.5
                                                                                                                           175
       Channel Islands ( United
30
        Central African                 79
        Western Sahara
 23.3       130
       Uruguay
 15.1
                                                                                                                           Kingdom)
9.4
Republic
 36.1                             80
        India
     23.0            131
       Chile
     15.0
                                                                                                                           176
       Belarus
 9.4
31
        Palestinian                     81
        El Salvador
        22.8   132
       Sri Lanka
15.0
                                                                                                                           177
       Greece
 9.3
territories
          35.9                 82
        Uzbekistan
         22.6   133
       Mauritius
14.8
                                                                                                                           178
       Hungary
 9.3
32
        Côte d'Ivoire
     35.3         83
        South Africa
       22.3   134
       Guadeloupe
                                                                                                                           179
       South Korea
       9.3
33
        Senegal
 35.2                   84
        Oman
 22.1                 ( France)
 14.8
                                                                                                                           180
       Latvia
 9.3
34
        Republic of the                 85
        Kyrgyzstan
         21.8   135
       Trinidad and
                                                                                                                           181
       Austria
 9.2
Congo
 35.1                                86
        Turkmenistan
       21.8   Tobago
 14.8
                                                                                                                           182
       Czech Republic
 9.2
35
        Gambia
 34.9                    87
        Brunei
 21.5               136
       Thailand
 14.6
                                                                                                                           183
       Italy
     9.2
36
        Cameroon
          34.5         88
        Venezuela
          21.4   137
       Iceland
 14.3
                                                                                                                           184
       Switzerland
       9.2
37
        Comoros
33.4                    89
        Fiji
      21.1            138
       Aruba
                                                                                                                           185
       Ukraine
 9.2
38
        Guatemala
         33.2         90
        Ecuador
 21.0              ( Netherlands)
       14.1
                                                                                                                           186
       Lithuania
9.1
39
        Mauritania
        32.5         91
        Peru
      20.9            139
       United States
        14.0
                                                                                                                           187
       Croatia
 9.0
40
        São Tomé and                    92
        Algeria
 20.8              140
       New Zealand
          13.7
                                                                                                                           188
       Slovenia
 9.0
Príncipe
 32.4                             93
        Panama
 20.8               141
       Montenegro
           13.6
                                                                                                                           189
       Bulgaria
 8.9
41
        Iraq
      31.7                 94
        Malaysia
 20.6             142
       U.S. Virgin Islands ( United
                                                                                                                           190
       Bosnia and
42
        Sudan
 31.5                     95
        Morocco
20.5               States)
 13.4
                                                                                                                           Herzegovina
          8.8
43
        Solomon Islands
 30.5           96
        Iran
      20.3            143
       Puerto Rico ( United
                                                                                                                           191
       Japan
     8.3
44
        Ghana
 29.6                     97
        Saint Vincent and the      States)
 13.3
                                                                                                                           192
       Germany
8.2
45
        Papua New Guinea
29.6           Grenadines
           20.1            144
       North Korea
          13.2
                                                                                                                           193
       Singapore
8.2
46
        Lesotho
 29.0                   98
        Jamaica
 19.9              145
       People's Republic of China
                                                                                                                           194
       Hong Kong ( People's Republic of
47
        Cape Verde
        28.9         99
        Israel
    19.7            (mainland only)
      13.1
                                                                                                                           China)
 7.6
48
        Vanuatu
 28.8                   100
       Kazakhstan
         19.7   146
       Serbia
 12.8
                                                                                                                           195
       Macau ( People's Republic of
49
        Djibouti
 28.7                  101
       Suriname
19.5              147
       Armenia
 12.5
                                                                                                                           China)
 7.6
50
        Swaziland
28.5                  102
       Mexico
 19.3               148
       Netherlands
51
        Nepal
 28.1                     103
       Brazil
    19.2            Antilles
 12.5
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
                 “Analyze age/sex     pyramids and diagrams showing demographic transition models.” (3)
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                                                                                                          source: http://geographyfieldwork.com/PopulationStructure.htm
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3.1.3.a. Demographic transition models




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                 “Analyze age/sex     pyramids and diagrams showing demographic transition models.” (3)




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                                                                                                                   source: http://geographyfieldwork.com/PopulationStructure.htm
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3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.a. Demographic transition models
      “Analyze age/sex   pyramids and diagrams showing demographic transition models.” (3)




                                                                                             source: http://geographyfieldwork.com/PopulationStructure.htm
3.1.3.b. Demographic transition models
     “Analyze age/sex pyramids and diagrams showing demographic                                                                transition models.” (3)




             source image 1: http://www.geographyalltheway.com/igcse_geography/population_settlement/population/demographic_transition.htm
              source image 2: http://content.answers.com/main/content/img/oxford/Oxford_Geography/0198606737.demographic-transition.1.jpg
3.1.3.b. Demographic transition models
     “Analyze age/sex pyramids and diagrams showing demographic                                                                transition models.” (3)




             source image 1: http://www.geographyalltheway.com/igcse_geography/population_settlement/population/demographic_transition.htm
              source image 2: http://content.answers.com/main/content/img/oxford/Oxford_Geography/0198606737.demographic-transition.1.jpg
3.1.3.b. Demographic transition models
     “Analyze age/sex pyramids and diagrams showing demographic                                                                transition models.” (3)




             source image 1: http://www.geographyalltheway.com/igcse_geography/population_settlement/population/demographic_transition.htm
              source image 2: http://content.answers.com/main/content/img/oxford/Oxford_Geography/0198606737.demographic-transition.1.jpg
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
3.1.4 Using models to make predictions
      “Discuss the use of models in predicting the growth of human populations.” (3)
Assignment: Population power point
In pairs, create a power point (with a maximum of: 3 slides with 6 lines of text per page) about
your assigned country. Include the following:
    • Age/sex pyramid
    • Stage in a demographic transition model
    • Explanation and calculate of: crude birth rate, crude death rate, fertility, doubling time and
      natural increase rate.

Also, be prepared to answer questions like these...

Sample Questions:
  1. Is the population of your country increasing or decreasing? What is the major factor
     contributing to this change?
  2. What do you think the population of your region will be in 2020? Justify your prediction.
  3. What might be some of the implications for health care, education and economy in your
     country?
  4. If you were the premier of this country, why might you want to reverse the trend in one of
     the components of population? What policies might you implement to reverse this trend?
  5. What policies are currently being used (anywhere) to affect one of the components of
     population?

DUE:
3.2 RESOURCES: NATURAL CAPITAL
      By Peter Stanley, International School of Tanganyika, 2008
3.2.1 Natural capital
“Explain the concept of resources in terms of natural income.” (3)
3.2.1 Natural capital
“Explain the concept of resources in terms of natural income.” (3)

•   Ecological goods
    anything nature
    produces and we use
    and/or make money
    from (commodities like
    timber, grain, coffee,
    gold, water, etc.)
3.2.1 Natural capital
“Explain the concept of resources in terms of natural income.” (3)

•   Ecological goods
    anything nature
    produces and we use
    and/or make money
    from (commodities like
    timber, grain, coffee,
    gold, water, etc.)

•   Ecological services
    nature provides a
    service to us (erosion
    protection from
    forests)
3.2.1 Natural capital
“Explain the concept of resources in terms of natural income.” (3)

•   Ecological goods
    anything nature
    produces and we use
    and/or make money
    from (commodities like
    timber, grain, coffee,
    gold, water, etc.)

•   Ecological services
    nature provides a
    service to us (erosion
    protection from
    forests)
•   “resources”
3.2.1 Natural capital
“Explain the concept of resources in terms of natural income.” (3)

•   Ecological goods
    anything nature
    produces and we use
    and/or make money
    from (commodities like
    timber, grain, coffee,
    gold, water, etc.)

•   Ecological services
    nature provides a
    service to us (erosion
    protection from
    forests)
•   “resources”
3.2.1 Natural capital
“Explain the concept of resources in terms of natural income.” (3)

•   Ecological goods
    anything nature
    produces and we use
    and/or make money
    from (commodities like
    timber, grain, coffee,
    gold, water, etc.)

•   Ecological services
    nature provides a
    service to us (erosion
    protection from
    forests)
•   “resources”
3.2.1 Natural capital
“Explain the concept of resources in terms of natural income.” (3)

•   Ecological goods
    anything nature
    produces and we use
    and/or make money
    from (commodities like
    timber, grain, coffee,
    gold, water, etc.)

•   Ecological services
    nature provides a
    service to us (erosion
    protection from
    forests)
•   “resources”
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)

Renewable natural capital
• Self-producing (living) and self-maintaining (ecosystems)
• Needs solar energy
  • can be sold/marketed (wood, ethanol, food)
  • but some give essential services when left alone
     • elephants (habitat maintenance - NO IVORY!)
     • forests (local temperature and water filtration)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)




                                       finish Tuesday...


                                       Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital


                                       finish Tuesday...


                                       Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
                                       finish Tuesday...


                                       Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
                                       finish Tuesday...


                                       Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...


                                       Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...

  • ozone layer                Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...

  • ozone layer                Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...

  • ozone layer                Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...

  • ozone layer                Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...

  • ozone layer                Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...

  • ozone layer                Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Replenishable natural capital
• is non-living but is also often dependent on the solar “engine” for renewal
  • groundwater
  • wind                       finish Tuesday...

  • ozone layer                Watch Movie slide 12 after
                                       the test.
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.2 Renewable, replenishable and non-renewable
“Define the terms renewable, replenishable and non‑renewable natural capital.” (1)


Non-renewable natural capital
• inventories, any use implies liquidating part of the stock
  • minerals
  • fossil fuel
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.3 Dynamic nature of resources
“Explain the dynamic nature of the concept of a resource.” (3)

Influencing the status of a resource over time and space
• Cultural, Economic, Technological
        • sounds like “environmental value systems”
        • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
• What about ethanol, oil, solar... discuss the following cartoons
3.2.4 Intrinsic value of environment
“Discuss the view that the environment can have its own intrinsic value.” (3)
3.2.4 Intrinsic value of environment
“Discuss the view that the environment can have its own intrinsic value.” (3)

                                             The “inward” value of nature
                                             regardless of it’s use to humans.
3.2.4 Intrinsic value of environment
“Discuss the view that the environment can have its own intrinsic value.” (3)

                                             The “inward” value of nature
                                             regardless of it’s use to humans.
                                             • includes ethical, spriritual and
                                                 philosophical perspective
3.2.4 Intrinsic value of environment
“Discuss the view that the environment can have its own intrinsic value.” (3)

                                             The “inward” value of nature
                                             regardless of it’s use to humans.
                                             • includes ethical, spriritual and
                                                 philosophical perspective
                                             •   hard to quantify
3.2.4 Intrinsic value of environment
“Discuss the view that the environment can have its own intrinsic value.” (3)

                                             The “inward” value of nature
                                             regardless of it’s use to humans.
                                             • includes ethical, spriritual and
                                                 philosophical perspective
                                             •   hard to quantify
                                                 • Some ideas include: ‘biodiversity’
                                                    and ‘rate of depletion’
3.2.4 Intrinsic value of environment
“Discuss the view that the environment can have its own intrinsic value.” (3)

                                             The “inward” value of nature
                                             regardless of it’s use to humans.
                                             • includes ethical, spriritual and
                                                 philosophical perspective
                                             •   hard to quantify
                                                 • Some ideas include: ‘biodiversity’
                                                    and ‘rate of depletion’
                                             • How would you debate
                                                 aesthetic value with an
                                                 economist?
3.2.4 Intrinsic value of environment
“Discuss the view that the environment can have its own intrinsic value.” (3)

                                             The “inward” value of nature
                                             regardless of it’s use to humans.
                                             • includes ethical, spriritual and
                                                 philosophical perspective
                                             •   hard to quantify
                                                 • Some ideas include: ‘biodiversity’
                                                    and ‘rate of depletion’
                                             • How would you debate
                                                 aesthetic value with an
                                                 economist?
                                                 • health benefits? societal well
                                                    being?
3.2.5 Sustainability
“Explain the concept of sustainability in terms of natural capital and natural income.” (3)




                                                                                              image source: http://www.sustainablescale.org/
3.2.5 Sustainability
“Explain the concept of sustainability in terms of natural capital and natural income.” (3)



 • “Living on the ‘interest’ or
     sustainable income generated by
     natural capital.”




                                                                                              image source: http://www.sustainablescale.org/
3.2.5 Sustainability
“Explain the concept of sustainability in terms of natural capital and natural income.” (3)



 • “Living on the ‘interest’ or
     sustainable income generated by
     natural capital.”
 •   using and maintaining resources
     (goods and services) wisely, not
     depleting them.




                                                                                              image source: http://www.sustainablescale.org/
3.2.5 Sustainability
“Explain the concept of sustainability in terms of natural capital and natural income.” (3)



 • “Living on the ‘interest’ or
     sustainable income generated by
     natural capital.”
 •   using and maintaining resources
     (goods and services) wisely, not
     depleting them.
 •   put it all in a sentence... (natural
     income, natural capital,
     sustainability).




                                                                                              image source: http://www.sustainablescale.org/
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
• First definition was: “Development that meets current needs without
   compromising the ability of future generations to meet their own
   needs.” (The Brundtland Report, UN, 1987)
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
• First definition was: “Development that meets current needs without
    compromising the ability of future generations to meet their own
    needs.” (The Brundtland Report, UN, 1987)
•   In other words... maximizing economic production must now be constrained
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
• First definition was: “Development that meets current needs without
    compromising the ability of future generations to meet their own
    needs.” (The Brundtland Report, UN, 1987)
•   In other words... maximizing economic production must now be constrained
    • depends on:
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
• First definition was: “Development that meets current needs without
    compromising the ability of future generations to meet their own
    needs.” (The Brundtland Report, UN, 1987)
•   In other words... maximizing economic production must now be constrained
    • depends on:
       • reducing ecological distruction
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
• First definition was: “Development that meets current needs without
    compromising the ability of future generations to meet their own
    needs.” (The Brundtland Report, UN, 1987)
•   In other words... maximizing economic production must now be constrained
    • depends on:
       • reducing ecological distruction
       • improving material quality of life of worlds poor
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
• First definition was: “Development that meets current needs without
    compromising the ability of future generations to meet their own
    needs.” (The Brundtland Report, UN, 1987)
•   In other words... maximizing economic production must now be constrained
    • depends on:
       • reducing ecological distruction
       • improving material quality of life of worlds poor


        TED Video: “Inspired ideas...” Alex Steffen
3.2.6 Sustainable development
“Discuss the concept of sustainable development.” (3)

Come up with a your own definition...
• First definition was: “Development that meets current needs without
    compromising the ability of future generations to meet their own
    needs.” (The Brundtland Report, UN, 1987)
•   In other words... maximizing economic production must now be constrained
    • depends on:
       • reducing ecological distruction
       • improving material quality of life of worlds poor


        TED Video: “Inspired ideas...” Alex Steffen


       TED Video: “Sustainable City” Jaime Lerner
What does this map tell us?
What does this map tell us?
      Who uses the resources/energy?
What does this map tell us?
      Who uses the resources/energy?
        Who has the resources?
What does this map tell us?
                                 Who uses the resources/energy?
                                      Who has the resources?
lights require electricity... requires resources... requires money to access and refine/convert
What does this map tell us?
                                 Who uses the resources/energy?
                                      Who has the resources?
lights require electricity... requires resources... requires money to access and refine/convert
           Is this sustainable at a country level? Is this sustainable at a global level?
3.2.7 Sustainable yield
“Calculate and explain sustainable yield from given data.” (3)
3.2.7 Sustainable yield
“Calculate and explain sustainable yield from given data.” (3)


• rate of increase in natural capital
3.2.7 Sustainable yield
“Calculate and explain sustainable yield from given data.” (3)


• rate of increase in natural capital
  • what we can use without exploiting the stock
3.2.7 Sustainable yield
“Calculate and explain sustainable yield from given data.” (3)


• rate of increase in natural capital
  • what we can use without exploiting the stock
  • ie. annual sustainable yield for a given crop can
      be estimated as the annual gain......below....
to sustainability and economic gro



3.2.7 Sustainable yield
                                                                                    Rio Earth Summit (1992) leading to
                                                                                    Int: International summits on sust
                                                                                    development have highlighted th
                                                                                    involved in economic developmen
“Calculate and explain sustainable yield from given data.” (3)
                                                                                    globe, yet the viewpoints of enviro
                                                                                    and economists may be very diffe
                              3.2.7     Calculate and explain sustainable      3    Sustainable yield (SY) may be calc
• rate of increase in natural capital   yield from given data.                      rate of increase in natural capital, t

  • what we can use without exploiting the stock                                    which can be exploited without d
                                                                                    original stock or its potential for re

  • ie. annual sustainable yield for a given crop can                               For example, the annual sustainab
                                                                                    a given crop may be estimated sim
      be estimated as the annual gain......below....                                annual gain in biomass or energy
                                                                                    and recruitment. See figures 1 and


                             Figure 1



                                      total biomass                         total biomass
                             SY =                     at time t + 1   –                     at time t
     Equations from the                  energy                                energy
          syllabus
                             Figure 2


                             SY = (annual growth and recruitment) – (annual death and emigration)
to sustainability and economic gro



3.2.7 Sustainable yield
                                                                                    Rio Earth Summit (1992) leading to
                                                                                    Int: International summits on sust
                                                                                    development have highlighted th
                                                                                    involved in economic developmen
“Calculate and explain sustainable yield from given data.” (3)
                                                                                    globe, yet the viewpoints of enviro
                                                                                    and economists may be very diffe
                              3.2.7     Calculate and explain sustainable      3    Sustainable yield (SY) may be calc
• rate of increase in natural capital   yield from given data.                      rate of increase in natural capital, t

  • what we can use without exploiting the stock                                    which can be exploited without d
                                                                                    original stock or its potential for re

  • ie. annual sustainable yield for a given crop can                               For example, the annual sustainab
                                                                                    a given crop may be estimated sim
      be estimated as the annual gain......below....                                annual gain in biomass or energy
                                                                                    and recruitment. See figures 1 and


                             Figure 1



                                      total biomass                         total biomass
                             SY =                     at time t + 1   –                     at time t
     Equations from the                  energy                                energy
          syllabus
                             Figure 2


                             SY = (annual growth and recruitment) – (annual death and emigration)
to sustainability and economic gro



3.2.7 Sustainable yield
                                                                                    Rio Earth Summit (1992) leading to
                                                                                    Int: International summits on sust
                                                                                    development have highlighted th
                                                                                    involved in economic developmen
“Calculate and explain sustainable yield from given data.” (3)
                                                                                    globe, yet the viewpoints of enviro
                                                                                    and economists may be very diffe
                              3.2.7     Calculate and explain sustainable      3    Sustainable yield (SY) may be calc
• rate of increase in natural capital   yield from given data.                      rate of increase in natural capital, t

  • what we can use without exploiting the stock                                    which can be exploited without d
                                                                                    original stock or its potential for re

  • ie. annual sustainable yield for a given crop can                               For example, the annual sustainab
                                                                                    a given crop may be estimated sim
      be estimated as the annual gain......below....                                annual gain in biomass or energy
                                                                                    and recruitment. See figures 1 and


                             Figure 1



                                      total biomass                         total biomass
                             SY =                     at time t + 1   –                     at time t
     Equations from the                  energy                                energy
          syllabus
                             Figure 2


                             SY = (annual growth and recruitment) – (annual death and emigration)
to sustainability and economic gro



3.2.7 Sustainable yield
                                                                                    Rio Earth Summit (1992) leading to
                                                                                    Int: International summits on sust
                                                                                    development have highlighted th
                                                                                    involved in economic developmen
“Calculate and explain sustainable yield from given data.” (3)
                                                                                    globe, yet the viewpoints of enviro
                                                                                    and economists may be very diffe
                              3.2.7     Calculate and explain sustainable      3    Sustainable yield (SY) may be calc
• rate of increase in natural capital   yield from given data.                      rate of increase in natural capital, t

  • what we can use without exploiting the stock                                    which can be exploited without d
                                                                                    original stock or its potential for re

  • ie. annual sustainable yield for a given crop can                               For example, the annual sustainab
                                                                                    a given crop may be estimated sim
      be estimated as the annual gain......below....                                annual gain in biomass or energy
                                                                                    and recruitment. See figures 1 and


                             Figure 1



                                      total biomass                         total biomass
                             SY =                     at time t + 1   –                     at time t
     Equations from the                  energy                                energy
          syllabus
                             Figure 2


                             SY = (annual growth and recruitment) – (annual death and emigration)
to sustainability and economic gro



3.2.7 Sustainable yield
                                                                                    Rio Earth Summit (1992) leading to
                                                                                    Int: International summits on sust
                                                                                    development have highlighted th
                                                                                    involved in economic developmen
“Calculate and explain sustainable yield from given data.” (3)
                                                                                    globe, yet the viewpoints of enviro
                                                                                    and economists may be very diffe
                              3.2.7     Calculate and explain sustainable      3    Sustainable yield (SY) may be calc
• rate of increase in natural capital   yield from given data.                      rate of increase in natural capital, t

  • what we can use without exploiting the stock                                    which can be exploited without d
                                                                                    original stock or its potential for re

  • ie. annual sustainable yield for a given crop can                               For example, the annual sustainab
                                                                                    a given crop may be estimated sim
      be estimated as the annual gain......below....                                annual gain in biomass or energy
                                                                                    and recruitment. See figures 1 and


                             Figure 1



                                      total biomass                         total biomass
                             SY =                     at time t + 1   –                     at time t
     Equations from the                  energy                                energy
          syllabus
                             Figure 2


                             SY = (annual growth and recruitment) – (annual death and emigration)
to sustainability and economic gro



3.2.7 Sustainable yield
                                                                                    Rio Earth Summit (1992) leading to
                                                                                    Int: International summits on sust
                                                                                    development have highlighted th
                                                                                    involved in economic developmen
“Calculate and explain sustainable yield from given data.” (3)
                                                                                    globe, yet the viewpoints of enviro
                                                                                    and economists may be very diffe
                              3.2.7     Calculate and explain sustainable      3    Sustainable yield (SY) may be calc
• rate of increase in natural capital   yield from given data.                      rate of increase in natural capital, t

  • what we can use without exploiting the stock                                    which can be exploited without d
                                                                                    original stock or its potential for re

  • ie. annual sustainable yield for a given crop can                               For example, the annual sustainab
                                                                                    a given crop may be estimated sim
      be estimated as the annual gain......below....                                annual gain in biomass or energy
                                                                                    and recruitment. See figures 1 and


                             Figure 1



                                      total biomass                         total biomass
                             SY =                     at time t + 1   –                     at time t
     Equations from the                  energy                                energy
          syllabus
                             Figure 2


                             SY = (annual growth and recruitment) – (annual death and emigration)
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use
ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use

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ESS Topic 3 - Human Populations, Carrying Capacity, and Resource Use

  • 1. HUMAN POPULATION, CARRYING CAPACITY & RESOURCE USE Topic 3 By Peter Stanley, International School of Tanganyika, 2008
  • 2. HUMAN POPULATION, CARRYING CAPACITY & RESOURCE USE Topic 3 By Peter Stanley, International School of Tanganyika, 2008
  • 3. 3.1 POPULATION DYNAMICS © Peter Stanley, 2009
  • 4. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3)
  • 5. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3)
  • 6. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3)
  • 7. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3)
  • 8. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth:
  • 9. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296
  • 10. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially?
  • 11. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources
  • 12. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land)
  • 13. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land) • Pollution
  • 14. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land) • Pollution • more hosts for disease outbreaks
  • 15. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land) • Pollution • more hosts for disease outbreaks What are the limiting factors that may eventually stem our growth?
  • 16. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land) • Pollution • more hosts for disease outbreaks What are the limiting factors that may eventually stem our growth? • Shortage of food
  • 17. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land) • Pollution • more hosts for disease outbreaks What are the limiting factors that may eventually stem our growth? • Shortage of food • Disease
  • 18. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land) • Pollution • more hosts for disease outbreaks What are the limiting factors that may eventually stem our growth? • Shortage of food • Disease • Pollution
  • 19. 3.1.1 Exponential growth “Describe the nature and explain the implications of exponential growth in human populations.” (3) Rapid, increasing growth: 22=4... 42=16... 162=256... 2562=65,536...65,5362=4,294,967,296 What are the implication of our population growing exponentially? • Using resources • War (water, oil, food, land) • Pollution • more hosts for disease outbreaks What are the limiting factors that may eventually stem our growth? • Shortage of food • Disease • Pollution • Shortage of space (territory) factors
  • 20. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) click to read more about this subject click to find the data on any country
  • 21. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people click to read more about this subject click to find the data on any country
  • 22. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people click to read more about this subject click to find the data on any country
  • 23. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people click to read more about this subject click to find the data on any country
  • 24. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people click to read more about this subject click to find the data on any country
  • 25. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime click to read more about this subject click to find the data on any country
  • 26. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double click to read more about this subject click to find the data on any country
  • 27. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) click to read more about this subject click to find the data on any country
  • 28. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!) click to read more about this subject click to find the data on any country
  • 29. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!) If... Tanzania has a pop. of 1,000,000 and 15,000 are born last year... what was the CBR? click to read more about this subject click to find the data on any country
  • 30. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!) If... Tanzania has a pop. of 1,000,000 and 15,000 are born last year... what was the CBR? 15,000 CBR = 1,000,000 1000 click to read more about this subject click to find the data on any country
  • 31. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!) If... Tanzania has a pop. of 1,000,000 and 15,000 are born last year... what was the CBR? 15,000 CBR = 1,000,000 1000 CBR = 15 click to read more about this subject click to find the data on any country
  • 32. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!) If... Tanzania has a pop. of 1,000,000 and 15,000 If... Afganistan has a growth rate of 4.8%, how are born last year... what was the CBR? long will it take for the population to double? 15,000 CBR = 1,000,000 1000 CBR = 15 click to read more about this subject click to find the data on any country
  • 33. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!) If... Tanzania has a pop. of 1,000,000 and 15,000 If... Afganistan has a growth rate of 4.8%, how are born last year... what was the CBR? long will it take for the population to double? 15,000 CBR 70 = Doubling Time = 1,000,000 1000 4.8 CBR = 15 click to read more about this subject click to find the data on any country
  • 34. 3.1.2 Calculating population changes “Calculate and explain, from given data, the values of crude birth rate, crude death rate, fertility, doubling time and natural increase rate.” (3) • Crude birth rate (CBR): natality (births) per 1000 people • Crude death rate (CDR): deaths per 1000 people • Fertility: number of children per woman in her lifetime • Doubling time: how long it takes for population to double • 70 / overall growth rate (it’s a math thing...) • Natural increase rate: (CBR-CDR) ÷ 10 (migration not included!) If... Tanzania has a pop. of 1,000,000 and 15,000 If... Afganistan has a growth rate of 4.8%, how are born last year... what was the CBR? long will it take for the population to double? 15,000 CBR 70 = Doubling Time = 1,000,000 1000 4.8 CBR = 15 14.5 years click to read more about this subject click to find the data on any country
  • 36. World birth rates ranked from highest to lowest
  • 37. World birth rates ranked from highest to lowest 1 Democratic Republic of the 52 Haiti 27.9 104 Saint Lucia 19.1 149 Australia 12.4 Congo 49.6 53 Honduras 7.9 2 105 Vietnam 18.8 150 Martinique 2 Guinea-Bissau 49.6 54 Zimbabwe 27.9 106 Colombia 18.7 ( France) 12.4 3 Liberia 49.6 55 Bolivia 27.3 107 Indonesia 18.7 151 Cyprus 12.2 4 Niger 49.0 56 Tajikistan 27.3 108 Bhutan 18.5 152 France 5 Afghanistan 48.2 57 Pakistan 27.2 109 Guam ( United (metropolitan) 12.2 6 Mali 48.1 58 Laos 26.8 States) 18.5 153 United Kingdom 12.0 7 Angola 47.3 59 Syria 26.7 110 Mongolia 18.4 154 Norway 12.0 8 Burundi 47.1 60 Cambodia 26.4 111 Turkey 18.4 155 Luxembourg 11.5 9 Uganda 46.6 61 Jordan 25.9 112 French Polynesia 156 Moldova 11.4 10 Sierra Leone 46.2 62 Federated States of ( France) 18.3 157 Sweden 11.3 11 Chad 45.5 Micronesia 25.9 113 Lebanon 18.2 158 Denmark 11.2 12 Rwanda 44.5 63 Philippines 25.8 114 Myanmar 18.2 159 Finland 11.2 13 Burkina Faso 44.0 64 Gabon 25.7 115 Grenada 18.0 160 Netherlands 11.1 14 Somalia 42.9 65 Namibia 25.7 116 Réunion ( France) 18.0 161 Barbados 11.0 15 Timor-Leste 42.1 66 Tonga 25.6 117 Kuwait 17.9 162 Republic of 16 Malawi 40.7 67 Belize 25.2 118 Costa Rica 17.8 Macedonia 10.9 17 Benin 40.2 68 Botswana 24.9 119 Argentina 17.5 163 Estonia 10.8 18 Nigeria 39.9 69 Nicaragua 24.9 120 Bahrain 17.1 164 Georgia 10.8 19 Guinea 39.8 70 Saudi Arabia 24.9 121 Guyana 17.1 165 Spain 10.8 20 Mozambique 39.5 71 Bangladesh 24.8 122 Bahamas 16.9 166 Russia 10.7 21 Eritrea 39.3 72 Paraguay 24.8 123 Tunisia 16.7 167 Portugal 10.5 22 Zambia 39.3 73 Samoa 24.7 124 New Caledonia 168 Belgium 10.4 23 Kenya 39.2 74 Egypt 24.2 ( France) 16.4 169 Canada 10.3 24 Tanzania 39.0 75 French Guiana 125 Albania 16.3 170 Cuba 10.3 25 Equatorial Guinea 38.5 ( France) 23.9 126 Azerbaijan 16.2 171 Slovakia 10.0 26 Yemen 38.3 76 Dominican 127 Qatar 16.2 172 Malta 9.8 27 Ethiopia 38.2 Republic 23.5 128 United Arab 173 Romania 9.8 28 Togo 36.8 77 Libya 23.4 Emirates 16.2 174 Poland 9.5 29 Madagascar 36.4 78 Maldives 23.4 129 Ireland 15.5 175 Channel Islands ( United 30 Central African 79 Western Sahara 23.3 130 Uruguay 15.1 Kingdom) 9.4 Republic 36.1 80 India 23.0 131 Chile 15.0 176 Belarus 9.4 31 Palestinian 81 El Salvador 22.8 132 Sri Lanka 15.0 177 Greece 9.3 territories 35.9 82 Uzbekistan 22.6 133 Mauritius 14.8 178 Hungary 9.3 32 Côte d'Ivoire 35.3 83 South Africa 22.3 134 Guadeloupe 179 South Korea 9.3 33 Senegal 35.2 84 Oman 22.1 ( France) 14.8 180 Latvia 9.3 34 Republic of the 85 Kyrgyzstan 21.8 135 Trinidad and 181 Austria 9.2 Congo 35.1 86 Turkmenistan 21.8 Tobago 14.8 182 Czech Republic 9.2 35 Gambia 34.9 87 Brunei 21.5 136 Thailand 14.6 183 Italy 9.2 36 Cameroon 34.5 88 Venezuela 21.4 137 Iceland 14.3 184 Switzerland 9.2 37 Comoros 33.4 89 Fiji 21.1 138 Aruba 185 Ukraine 9.2 38 Guatemala 33.2 90 Ecuador 21.0 ( Netherlands) 14.1 186 Lithuania 9.1 39 Mauritania 32.5 91 Peru 20.9 139 United States 14.0 187 Croatia 9.0 40 São Tomé and 92 Algeria 20.8 140 New Zealand 13.7 188 Slovenia 9.0 Príncipe 32.4 93 Panama 20.8 141 Montenegro 13.6 189 Bulgaria 8.9 41 Iraq 31.7 94 Malaysia 20.6 142 U.S. Virgin Islands ( United 190 Bosnia and 42 Sudan 31.5 95 Morocco 20.5 States) 13.4 Herzegovina 8.8 43 Solomon Islands 30.5 96 Iran 20.3 143 Puerto Rico ( United 191 Japan 8.3 44 Ghana 29.6 97 Saint Vincent and the States) 13.3 192 Germany 8.2 45 Papua New Guinea 29.6 Grenadines 20.1 144 North Korea 13.2 193 Singapore 8.2 46 Lesotho 29.0 98 Jamaica 19.9 145 People's Republic of China 194 Hong Kong ( People's Republic of 47 Cape Verde 28.9 99 Israel 19.7 (mainland only) 13.1 China) 7.6 48 Vanuatu 28.8 100 Kazakhstan 19.7 146 Serbia 12.8 195 Macau ( People's Republic of 49 Djibouti 28.7 101 Suriname 19.5 147 Armenia 12.5 China) 7.6 50 Swaziland 28.5 102 Mexico 19.3 148 Netherlands 51 Nepal 28.1 103 Brazil 19.2 Antilles 12.5
  • 38. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 39. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) les source: http://geographyfieldwork.com/PopulationStructure.htm se co no m ica lly de ve lo pe d co un tr y (L ED C s)
  • 40. 3.1.3.a. Demographic transition models s) C “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) ED (M y les tr source: http://geographyfieldwork.com/PopulationStructure.htm un se co co no d pe m lo ica ve lly de de lly ve ica lo om pe d on co ec un e tr or y m (L ED C s)
  • 41. 3.1.3.a. Demographic transition models s) C “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) ED (M y les tr source: http://geographyfieldwork.com/PopulationStructure.htm un se co co no d pe m lo ica ve lly de de lly ve ica lo om pe d on co ec un e tr or y m (L ED C s)
  • 42. 3.1.3.a. Demographic transition models s) C “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) ED (M y les tr source: http://geographyfieldwork.com/PopulationStructure.htm un se co co no d pe m lo ica ve lly de de lly ve ica lo om pe d on co ec un e tr or y m (L ED C s)
  • 43. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 44. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 45. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 46. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 47. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 48. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 49. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 50. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 51. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 52. 3.1.3.a. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source: http://geographyfieldwork.com/PopulationStructure.htm
  • 53. 3.1.3.b. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source image 1: http://www.geographyalltheway.com/igcse_geography/population_settlement/population/demographic_transition.htm source image 2: http://content.answers.com/main/content/img/oxford/Oxford_Geography/0198606737.demographic-transition.1.jpg
  • 54. 3.1.3.b. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source image 1: http://www.geographyalltheway.com/igcse_geography/population_settlement/population/demographic_transition.htm source image 2: http://content.answers.com/main/content/img/oxford/Oxford_Geography/0198606737.demographic-transition.1.jpg
  • 55. 3.1.3.b. Demographic transition models “Analyze age/sex pyramids and diagrams showing demographic transition models.” (3) source image 1: http://www.geographyalltheway.com/igcse_geography/population_settlement/population/demographic_transition.htm source image 2: http://content.answers.com/main/content/img/oxford/Oxford_Geography/0198606737.demographic-transition.1.jpg
  • 56. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 57. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 58. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 59. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 60. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 61. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 62. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 63. 3.1.4 Using models to make predictions “Discuss the use of models in predicting the growth of human populations.” (3)
  • 64. Assignment: Population power point In pairs, create a power point (with a maximum of: 3 slides with 6 lines of text per page) about your assigned country. Include the following: • Age/sex pyramid • Stage in a demographic transition model • Explanation and calculate of: crude birth rate, crude death rate, fertility, doubling time and natural increase rate. Also, be prepared to answer questions like these... Sample Questions: 1. Is the population of your country increasing or decreasing? What is the major factor contributing to this change? 2. What do you think the population of your region will be in 2020? Justify your prediction. 3. What might be some of the implications for health care, education and economy in your country? 4. If you were the premier of this country, why might you want to reverse the trend in one of the components of population? What policies might you implement to reverse this trend? 5. What policies are currently being used (anywhere) to affect one of the components of population? DUE:
  • 65. 3.2 RESOURCES: NATURAL CAPITAL By Peter Stanley, International School of Tanganyika, 2008
  • 66. 3.2.1 Natural capital “Explain the concept of resources in terms of natural income.” (3)
  • 67. 3.2.1 Natural capital “Explain the concept of resources in terms of natural income.” (3) • Ecological goods anything nature produces and we use and/or make money from (commodities like timber, grain, coffee, gold, water, etc.)
  • 68. 3.2.1 Natural capital “Explain the concept of resources in terms of natural income.” (3) • Ecological goods anything nature produces and we use and/or make money from (commodities like timber, grain, coffee, gold, water, etc.) • Ecological services nature provides a service to us (erosion protection from forests)
  • 69. 3.2.1 Natural capital “Explain the concept of resources in terms of natural income.” (3) • Ecological goods anything nature produces and we use and/or make money from (commodities like timber, grain, coffee, gold, water, etc.) • Ecological services nature provides a service to us (erosion protection from forests) • “resources”
  • 70. 3.2.1 Natural capital “Explain the concept of resources in terms of natural income.” (3) • Ecological goods anything nature produces and we use and/or make money from (commodities like timber, grain, coffee, gold, water, etc.) • Ecological services nature provides a service to us (erosion protection from forests) • “resources”
  • 71. 3.2.1 Natural capital “Explain the concept of resources in terms of natural income.” (3) • Ecological goods anything nature produces and we use and/or make money from (commodities like timber, grain, coffee, gold, water, etc.) • Ecological services nature provides a service to us (erosion protection from forests) • “resources”
  • 72. 3.2.1 Natural capital “Explain the concept of resources in terms of natural income.” (3) • Ecological goods anything nature produces and we use and/or make money from (commodities like timber, grain, coffee, gold, water, etc.) • Ecological services nature provides a service to us (erosion protection from forests) • “resources”
  • 73. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1)
  • 74. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital
  • 75. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems)
  • 76. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy
  • 77. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food)
  • 78. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone
  • 79. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!)
  • 80. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 81. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 82. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 83. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 84. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 85. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 86. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 87. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 88. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 89. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 90. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Renewable natural capital • Self-producing (living) and self-maintaining (ecosystems) • Needs solar energy • can be sold/marketed (wood, ethanol, food) • but some give essential services when left alone • elephants (habitat maintenance - NO IVORY!) • forests (local temperature and water filtration)
  • 91. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) finish Tuesday... Watch Movie slide 12 after the test.
  • 92. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital finish Tuesday... Watch Movie slide 12 after the test.
  • 93. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal finish Tuesday... Watch Movie slide 12 after the test.
  • 94. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater finish Tuesday... Watch Movie slide 12 after the test.
  • 95. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... Watch Movie slide 12 after the test.
  • 96. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... • ozone layer Watch Movie slide 12 after the test.
  • 97. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... • ozone layer Watch Movie slide 12 after the test.
  • 98. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... • ozone layer Watch Movie slide 12 after the test.
  • 99. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... • ozone layer Watch Movie slide 12 after the test.
  • 100. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... • ozone layer Watch Movie slide 12 after the test.
  • 101. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... • ozone layer Watch Movie slide 12 after the test.
  • 102. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Replenishable natural capital • is non-living but is also often dependent on the solar “engine” for renewal • groundwater • wind finish Tuesday... • ozone layer Watch Movie slide 12 after the test.
  • 103. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1)
  • 104. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital
  • 105. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock
  • 106. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals
  • 107. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 108. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 109. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 110. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 111. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 112. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 113. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 114. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 115. 3.2.2 Renewable, replenishable and non-renewable “Define the terms renewable, replenishable and non‑renewable natural capital.” (1) Non-renewable natural capital • inventories, any use implies liquidating part of the stock • minerals • fossil fuel
  • 116. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3)
  • 117. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space
  • 118. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological
  • 119. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems”
  • 120. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases...
  • 121. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 122. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 123. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 124. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 125. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 126. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 127. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 128. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 129. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 130. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 131. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 132. 3.2.3 Dynamic nature of resources “Explain the dynamic nature of the concept of a resource.” (3) Influencing the status of a resource over time and space • Cultural, Economic, Technological • sounds like “environmental value systems” • Uranium... nuclear tech...value increases... Chernobyl... support decreases... • What about ethanol, oil, solar... discuss the following cartoons
  • 133. 3.2.4 Intrinsic value of environment “Discuss the view that the environment can have its own intrinsic value.” (3)
  • 134. 3.2.4 Intrinsic value of environment “Discuss the view that the environment can have its own intrinsic value.” (3) The “inward” value of nature regardless of it’s use to humans.
  • 135. 3.2.4 Intrinsic value of environment “Discuss the view that the environment can have its own intrinsic value.” (3) The “inward” value of nature regardless of it’s use to humans. • includes ethical, spriritual and philosophical perspective
  • 136. 3.2.4 Intrinsic value of environment “Discuss the view that the environment can have its own intrinsic value.” (3) The “inward” value of nature regardless of it’s use to humans. • includes ethical, spriritual and philosophical perspective • hard to quantify
  • 137. 3.2.4 Intrinsic value of environment “Discuss the view that the environment can have its own intrinsic value.” (3) The “inward” value of nature regardless of it’s use to humans. • includes ethical, spriritual and philosophical perspective • hard to quantify • Some ideas include: ‘biodiversity’ and ‘rate of depletion’
  • 138. 3.2.4 Intrinsic value of environment “Discuss the view that the environment can have its own intrinsic value.” (3) The “inward” value of nature regardless of it’s use to humans. • includes ethical, spriritual and philosophical perspective • hard to quantify • Some ideas include: ‘biodiversity’ and ‘rate of depletion’ • How would you debate aesthetic value with an economist?
  • 139. 3.2.4 Intrinsic value of environment “Discuss the view that the environment can have its own intrinsic value.” (3) The “inward” value of nature regardless of it’s use to humans. • includes ethical, spriritual and philosophical perspective • hard to quantify • Some ideas include: ‘biodiversity’ and ‘rate of depletion’ • How would you debate aesthetic value with an economist? • health benefits? societal well being?
  • 140. 3.2.5 Sustainability “Explain the concept of sustainability in terms of natural capital and natural income.” (3) image source: http://www.sustainablescale.org/
  • 141. 3.2.5 Sustainability “Explain the concept of sustainability in terms of natural capital and natural income.” (3) • “Living on the ‘interest’ or sustainable income generated by natural capital.” image source: http://www.sustainablescale.org/
  • 142. 3.2.5 Sustainability “Explain the concept of sustainability in terms of natural capital and natural income.” (3) • “Living on the ‘interest’ or sustainable income generated by natural capital.” • using and maintaining resources (goods and services) wisely, not depleting them. image source: http://www.sustainablescale.org/
  • 143. 3.2.5 Sustainability “Explain the concept of sustainability in terms of natural capital and natural income.” (3) • “Living on the ‘interest’ or sustainable income generated by natural capital.” • using and maintaining resources (goods and services) wisely, not depleting them. • put it all in a sentence... (natural income, natural capital, sustainability). image source: http://www.sustainablescale.org/
  • 144. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3)
  • 145. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition...
  • 146. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition... • First definition was: “Development that meets current needs without compromising the ability of future generations to meet their own needs.” (The Brundtland Report, UN, 1987)
  • 147. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition... • First definition was: “Development that meets current needs without compromising the ability of future generations to meet their own needs.” (The Brundtland Report, UN, 1987) • In other words... maximizing economic production must now be constrained
  • 148. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition... • First definition was: “Development that meets current needs without compromising the ability of future generations to meet their own needs.” (The Brundtland Report, UN, 1987) • In other words... maximizing economic production must now be constrained • depends on:
  • 149. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition... • First definition was: “Development that meets current needs without compromising the ability of future generations to meet their own needs.” (The Brundtland Report, UN, 1987) • In other words... maximizing economic production must now be constrained • depends on: • reducing ecological distruction
  • 150. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition... • First definition was: “Development that meets current needs without compromising the ability of future generations to meet their own needs.” (The Brundtland Report, UN, 1987) • In other words... maximizing economic production must now be constrained • depends on: • reducing ecological distruction • improving material quality of life of worlds poor
  • 151. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition... • First definition was: “Development that meets current needs without compromising the ability of future generations to meet their own needs.” (The Brundtland Report, UN, 1987) • In other words... maximizing economic production must now be constrained • depends on: • reducing ecological distruction • improving material quality of life of worlds poor TED Video: “Inspired ideas...” Alex Steffen
  • 152. 3.2.6 Sustainable development “Discuss the concept of sustainable development.” (3) Come up with a your own definition... • First definition was: “Development that meets current needs without compromising the ability of future generations to meet their own needs.” (The Brundtland Report, UN, 1987) • In other words... maximizing economic production must now be constrained • depends on: • reducing ecological distruction • improving material quality of life of worlds poor TED Video: “Inspired ideas...” Alex Steffen TED Video: “Sustainable City” Jaime Lerner
  • 153.
  • 154. What does this map tell us?
  • 155. What does this map tell us? Who uses the resources/energy?
  • 156. What does this map tell us? Who uses the resources/energy? Who has the resources?
  • 157. What does this map tell us? Who uses the resources/energy? Who has the resources? lights require electricity... requires resources... requires money to access and refine/convert
  • 158. What does this map tell us? Who uses the resources/energy? Who has the resources? lights require electricity... requires resources... requires money to access and refine/convert Is this sustainable at a country level? Is this sustainable at a global level?
  • 159. 3.2.7 Sustainable yield “Calculate and explain sustainable yield from given data.” (3)
  • 160. 3.2.7 Sustainable yield “Calculate and explain sustainable yield from given data.” (3) • rate of increase in natural capital
  • 161. 3.2.7 Sustainable yield “Calculate and explain sustainable yield from given data.” (3) • rate of increase in natural capital • what we can use without exploiting the stock
  • 162. 3.2.7 Sustainable yield “Calculate and explain sustainable yield from given data.” (3) • rate of increase in natural capital • what we can use without exploiting the stock • ie. annual sustainable yield for a given crop can be estimated as the annual gain......below....
  • 163. to sustainability and economic gro 3.2.7 Sustainable yield Rio Earth Summit (1992) leading to Int: International summits on sust development have highlighted th involved in economic developmen “Calculate and explain sustainable yield from given data.” (3) globe, yet the viewpoints of enviro and economists may be very diffe 3.2.7 Calculate and explain sustainable 3 Sustainable yield (SY) may be calc • rate of increase in natural capital yield from given data. rate of increase in natural capital, t • what we can use without exploiting the stock which can be exploited without d original stock or its potential for re • ie. annual sustainable yield for a given crop can For example, the annual sustainab a given crop may be estimated sim be estimated as the annual gain......below.... annual gain in biomass or energy and recruitment. See figures 1 and Figure 1 total biomass total biomass SY = at time t + 1 – at time t Equations from the energy energy syllabus Figure 2 SY = (annual growth and recruitment) – (annual death and emigration)
  • 164. to sustainability and economic gro 3.2.7 Sustainable yield Rio Earth Summit (1992) leading to Int: International summits on sust development have highlighted th involved in economic developmen “Calculate and explain sustainable yield from given data.” (3) globe, yet the viewpoints of enviro and economists may be very diffe 3.2.7 Calculate and explain sustainable 3 Sustainable yield (SY) may be calc • rate of increase in natural capital yield from given data. rate of increase in natural capital, t • what we can use without exploiting the stock which can be exploited without d original stock or its potential for re • ie. annual sustainable yield for a given crop can For example, the annual sustainab a given crop may be estimated sim be estimated as the annual gain......below.... annual gain in biomass or energy and recruitment. See figures 1 and Figure 1 total biomass total biomass SY = at time t + 1 – at time t Equations from the energy energy syllabus Figure 2 SY = (annual growth and recruitment) – (annual death and emigration)
  • 165. to sustainability and economic gro 3.2.7 Sustainable yield Rio Earth Summit (1992) leading to Int: International summits on sust development have highlighted th involved in economic developmen “Calculate and explain sustainable yield from given data.” (3) globe, yet the viewpoints of enviro and economists may be very diffe 3.2.7 Calculate and explain sustainable 3 Sustainable yield (SY) may be calc • rate of increase in natural capital yield from given data. rate of increase in natural capital, t • what we can use without exploiting the stock which can be exploited without d original stock or its potential for re • ie. annual sustainable yield for a given crop can For example, the annual sustainab a given crop may be estimated sim be estimated as the annual gain......below.... annual gain in biomass or energy and recruitment. See figures 1 and Figure 1 total biomass total biomass SY = at time t + 1 – at time t Equations from the energy energy syllabus Figure 2 SY = (annual growth and recruitment) – (annual death and emigration)
  • 166. to sustainability and economic gro 3.2.7 Sustainable yield Rio Earth Summit (1992) leading to Int: International summits on sust development have highlighted th involved in economic developmen “Calculate and explain sustainable yield from given data.” (3) globe, yet the viewpoints of enviro and economists may be very diffe 3.2.7 Calculate and explain sustainable 3 Sustainable yield (SY) may be calc • rate of increase in natural capital yield from given data. rate of increase in natural capital, t • what we can use without exploiting the stock which can be exploited without d original stock or its potential for re • ie. annual sustainable yield for a given crop can For example, the annual sustainab a given crop may be estimated sim be estimated as the annual gain......below.... annual gain in biomass or energy and recruitment. See figures 1 and Figure 1 total biomass total biomass SY = at time t + 1 – at time t Equations from the energy energy syllabus Figure 2 SY = (annual growth and recruitment) – (annual death and emigration)
  • 167. to sustainability and economic gro 3.2.7 Sustainable yield Rio Earth Summit (1992) leading to Int: International summits on sust development have highlighted th involved in economic developmen “Calculate and explain sustainable yield from given data.” (3) globe, yet the viewpoints of enviro and economists may be very diffe 3.2.7 Calculate and explain sustainable 3 Sustainable yield (SY) may be calc • rate of increase in natural capital yield from given data. rate of increase in natural capital, t • what we can use without exploiting the stock which can be exploited without d original stock or its potential for re • ie. annual sustainable yield for a given crop can For example, the annual sustainab a given crop may be estimated sim be estimated as the annual gain......below.... annual gain in biomass or energy and recruitment. See figures 1 and Figure 1 total biomass total biomass SY = at time t + 1 – at time t Equations from the energy energy syllabus Figure 2 SY = (annual growth and recruitment) – (annual death and emigration)
  • 168. to sustainability and economic gro 3.2.7 Sustainable yield Rio Earth Summit (1992) leading to Int: International summits on sust development have highlighted th involved in economic developmen “Calculate and explain sustainable yield from given data.” (3) globe, yet the viewpoints of enviro and economists may be very diffe 3.2.7 Calculate and explain sustainable 3 Sustainable yield (SY) may be calc • rate of increase in natural capital yield from given data. rate of increase in natural capital, t • what we can use without exploiting the stock which can be exploited without d original stock or its potential for re • ie. annual sustainable yield for a given crop can For example, the annual sustainab a given crop may be estimated sim be estimated as the annual gain......below.... annual gain in biomass or energy and recruitment. See figures 1 and Figure 1 total biomass total biomass SY = at time t + 1 – at time t Equations from the energy energy syllabus Figure 2 SY = (annual growth and recruitment) – (annual death and emigration)

Notas del editor

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  38. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  39. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  40. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  41. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  42. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  43. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  44. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  45. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  46. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  47. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  48. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  49. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  50. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  51. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  52. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  53. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  54. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
  55. Int: While many of the more economically developed countries (MEDCs) have a declining population size, that of many of the less economically developed countries (LEDCs) is rising rapidly. The position of various countries on the demographic transition model reflects their development stages.\n
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  59. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  60. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  61. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  62. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  63. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  64. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  65. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  66. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  67. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  68. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  69. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  70. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  71. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  72. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  73. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  74. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  75. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  76. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  77. This might include computer simulations, statistical and/or demographic tables for LEDCs and MEDCs, age/sex pyramids and graphical extrapolation of population curves.\n
  78. Print and hand out to pairs. Countries to research: Tanzania, Norway, USA, India, Pakistan, Malawi, Oman, etc... mix of developed and developing. \n
  79. \n
  80. Ecologically minded economists describe resources as “natural capital”. If properly managed, renewable and replenishable resources are forms of wealth that can produce “natural income” indefinitely in the form of valuable goods and services. This income may consist of marketable commodities such as timber and grain (goods) or may be in the form of ecological services such as the flood and erosion protection provided by forests (services). Similarly, non-renewable resources can be considered in parallel to those forms of economic capital that cannot generate wealth without liquidation of the estate.\n
  81. Ecologically minded economists describe resources as “natural capital”. If properly managed, renewable and replenishable resources are forms of wealth that can produce “natural income” indefinitely in the form of valuable goods and services. This income may consist of marketable commodities such as timber and grain (goods) or may be in the form of ecological services such as the flood and erosion protection provided by forests (services). Similarly, non-renewable resources can be considered in parallel to those forms of economic capital that cannot generate wealth without liquidation of the estate.\n
  82. Ecologically minded economists describe resources as “natural capital”. If properly managed, renewable and replenishable resources are forms of wealth that can produce “natural income” indefinitely in the form of valuable goods and services. This income may consist of marketable commodities such as timber and grain (goods) or may be in the form of ecological services such as the flood and erosion protection provided by forests (services). Similarly, non-renewable resources can be considered in parallel to those forms of economic capital that cannot generate wealth without liquidation of the estate.\n
  83. Ecologically minded economists describe resources as “natural capital”. If properly managed, renewable and replenishable resources are forms of wealth that can produce “natural income” indefinitely in the form of valuable goods and services. This income may consist of marketable commodities such as timber and grain (goods) or may be in the form of ecological services such as the flood and erosion protection provided by forests (services). Similarly, non-renewable resources can be considered in parallel to those forms of economic capital that cannot generate wealth without liquidation of the estate.\n
  84. Ecologically minded economists describe resources as “natural capital”. If properly managed, renewable and replenishable resources are forms of wealth that can produce “natural income” indefinitely in the form of valuable goods and services. This income may consist of marketable commodities such as timber and grain (goods) or may be in the form of ecological services such as the flood and erosion protection provided by forests (services). Similarly, non-renewable resources can be considered in parallel to those forms of economic capital that cannot generate wealth without liquidation of the estate.\n
  85. Ecologically minded economists describe resources as “natural capital”. If properly managed, renewable and replenishable resources are forms of wealth that can produce “natural income” indefinitely in the form of valuable goods and services. This income may consist of marketable commodities such as timber and grain (goods) or may be in the form of ecological services such as the flood and erosion protection provided by forests (services). Similarly, non-renewable resources can be considered in parallel to those forms of economic capital that cannot generate wealth without liquidation of the estate.\n
  86. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  87. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  88. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  89. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  90. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  91. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  92. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  93. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  94. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  95. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  96. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  97. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  98. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  99. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  100. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  101. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  102. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  103. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  104. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  105. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  106. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  107. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  108. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  109. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  110. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  111. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  112. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  113. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  114. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  115. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  116. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  117. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  118. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  119. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  120. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  121. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  122. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  123. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  124. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  125. There are three broad classes of natural capital. \n* Renewable natural capital, such as living species and ecosystems, is self-producing and self-maintaining and uses solar energy and photosynthesis. This natural capital can yield marketable goods such as wood fibre, but may also provide unaccounted essential services when left in place, for example, climate regulation.\n* Replenishable natural capital, such as groundwater and the ozone layer, is non-living but is also often dependent on the solar “engine” for renewal.\n* Non-renewable (except on a geological timescale) forms of natural capital, such as fossil fuel and minerals, are analogous to inventories: any use implies liquidating part of the stock.\n\n
  126. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  127. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  128. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  129. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  130. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  131. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  132. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  133. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  134. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  135. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  136. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  137. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  138. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  139. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  140. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  141. Consider how cultural, economic, technological and other factors influence the status of a resource over time and space. For example, uranium, due to the development of nuclear technology, has only recently become a valuable resource.\n
  142. Organisms or ecosystems that are valued on aesthetic or intrinsic grounds may not provide commodities identifiable as either goods or services, and so remain unpriced or undervalued from an economic viewpoint. Organisms or ecosystems regarded as having intrinsic value, for instance from an ethical, spiritual or philosophical perspective, are valued regardless of their potential use to humans. Therefore, diverse perspectives may underlie the evaluation of natural capital.\nAttempts are being made to acknowledge diverse valuations of nature (for example, biodiversity, rate of depletion of natural resources) so that they may be weighed more rigorously against more common economic values (for example, gross national product (GNP)). However, some argue that these valuations are impossible to quantify and price realistically. Not surprisingly, much of the sustainability debate centres on the problem of how to weigh conflicting values in our treatment of natural capital.\nTOK: How can we quantify values such as aesthetic value, which are inherently qualitative?\n\n
  143. Organisms or ecosystems that are valued on aesthetic or intrinsic grounds may not provide commodities identifiable as either goods or services, and so remain unpriced or undervalued from an economic viewpoint. Organisms or ecosystems regarded as having intrinsic value, for instance from an ethical, spiritual or philosophical perspective, are valued regardless of their potential use to humans. Therefore, diverse perspectives may underlie the evaluation of natural capital.\nAttempts are being made to acknowledge diverse valuations of nature (for example, biodiversity, rate of depletion of natural resources) so that they may be weighed more rigorously against more common economic values (for example, gross national product (GNP)). However, some argue that these valuations are impossible to quantify and price realistically. Not surprisingly, much of the sustainability debate centres on the problem of how to weigh conflicting values in our treatment of natural capital.\nTOK: How can we quantify values such as aesthetic value, which are inherently qualitative?\n\n
  144. Organisms or ecosystems that are valued on aesthetic or intrinsic grounds may not provide commodities identifiable as either goods or services, and so remain unpriced or undervalued from an economic viewpoint. Organisms or ecosystems regarded as having intrinsic value, for instance from an ethical, spiritual or philosophical perspective, are valued regardless of their potential use to humans. Therefore, diverse perspectives may underlie the evaluation of natural capital.\nAttempts are being made to acknowledge diverse valuations of nature (for example, biodiversity, rate of depletion of natural resources) so that they may be weighed more rigorously against more common economic values (for example, gross national product (GNP)). However, some argue that these valuations are impossible to quantify and price realistically. Not surprisingly, much of the sustainability debate centres on the problem of how to weigh conflicting values in our treatment of natural capital.\nTOK: How can we quantify values such as aesthetic value, which are inherently qualitative?\n\n
  145. Organisms or ecosystems that are valued on aesthetic or intrinsic grounds may not provide commodities identifiable as either goods or services, and so remain unpriced or undervalued from an economic viewpoint. Organisms or ecosystems regarded as having intrinsic value, for instance from an ethical, spiritual or philosophical perspective, are valued regardless of their potential use to humans. Therefore, diverse perspectives may underlie the evaluation of natural capital.\nAttempts are being made to acknowledge diverse valuations of nature (for example, biodiversity, rate of depletion of natural resources) so that they may be weighed more rigorously against more common economic values (for example, gross national product (GNP)). However, some argue that these valuations are impossible to quantify and price realistically. Not surprisingly, much of the sustainability debate centres on the problem of how to weigh conflicting values in our treatment of natural capital.\nTOK: How can we quantify values such as aesthetic value, which are inherently qualitative?\n\n
  146. Organisms or ecosystems that are valued on aesthetic or intrinsic grounds may not provide commodities identifiable as either goods or services, and so remain unpriced or undervalued from an economic viewpoint. Organisms or ecosystems regarded as having intrinsic value, for instance from an ethical, spiritual or philosophical perspective, are valued regardless of their potential use to humans. Therefore, diverse perspectives may underlie the evaluation of natural capital.\nAttempts are being made to acknowledge diverse valuations of nature (for example, biodiversity, rate of depletion of natural resources) so that they may be weighed more rigorously against more common economic values (for example, gross national product (GNP)). However, some argue that these valuations are impossible to quantify and price realistically. Not surprisingly, much of the sustainability debate centres on the problem of how to weigh conflicting values in our treatment of natural capital.\nTOK: How can we quantify values such as aesthetic value, which are inherently qualitative?\n\n
  147. Organisms or ecosystems that are valued on aesthetic or intrinsic grounds may not provide commodities identifiable as either goods or services, and so remain unpriced or undervalued from an economic viewpoint. Organisms or ecosystems regarded as having intrinsic value, for instance from an ethical, spiritual or philosophical perspective, are valued regardless of their potential use to humans. Therefore, diverse perspectives may underlie the evaluation of natural capital.\nAttempts are being made to acknowledge diverse valuations of nature (for example, biodiversity, rate of depletion of natural resources) so that they may be weighed more rigorously against more common economic values (for example, gross national product (GNP)). However, some argue that these valuations are impossible to quantify and price realistically. Not surprisingly, much of the sustainability debate centres on the problem of how to weigh conflicting values in our treatment of natural capital.\nTOK: How can we quantify values such as aesthetic value, which are inherently qualitative?\n\n
  148. The term “sustainability” has been given a precise meaning in this syllabus. Students should understand that any society that supports itself in part by depleting essential forms of natural capital is unsustainable. If human well-being is dependent on the goods and services provided by certain forms of natural capital, then long-term harvest (or pollution) rates should not exceed rates of capital renewal. Sustainability means living, within the means of nature, on the “interest” or sustainable income generated by natural capital.\n
  149. The term “sustainability” has been given a precise meaning in this syllabus. Students should understand that any society that supports itself in part by depleting essential forms of natural capital is unsustainable. If human well-being is dependent on the goods and services provided by certain forms of natural capital, then long-term harvest (or pollution) rates should not exceed rates of capital renewal. Sustainability means living, within the means of nature, on the “interest” or sustainable income generated by natural capital.\n
  150. The term “sustainability” has been given a precise meaning in this syllabus. Students should understand that any society that supports itself in part by depleting essential forms of natural capital is unsustainable. If human well-being is dependent on the goods and services provided by certain forms of natural capital, then long-term harvest (or pollution) rates should not exceed rates of capital renewal. Sustainability means living, within the means of nature, on the “interest” or sustainable income generated by natural capital.\n
  151. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  152. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  153. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  154. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  155. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  156. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  157. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  158. The term “sustainable development” was first used in 1987 in Our Common Future (The Brundtland Report) and was defined as “development that meets current needs without compromising the ability of future generations to meet their own needs.” The value of this approach is a matter of considerable debate and there is now no single definition for sustainable development. For example, some economists may view sustainable development as a stable annual return on investment regardless of the environmental impact, whereas some environmentalists may view it as a stable return without environmental degradation.\nConsider the development of changing attitudes to sustainability and economic growth, since the Rio Earth Summit (1992) leading to Agenda 21.\nInt: International summits on sustainable development have highlighted the issues involved in economic development across the globe, yet the viewpoints of environmentalists and economists may be very different.\n\n
  159. \n
  160. \n
  161. \n
  162. \n
  163. \n
  164. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  165. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  166. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  167. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  168. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  169. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  170. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  171. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  172. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  173. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  174. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  175. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  176. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  177. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  178. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  179. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  180. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  181. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  182. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  183. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  184. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  185. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  186. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  187. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  188. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  189. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  190. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  191. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  192. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  193. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  194. Sustainable yield (SY) may be calculated as the rate of increase in natural capital, that is, that which can be exploited without depleting the original stock or its potential for replenishment. For example, the annual sustainable yield for a given crop may be estimated simply as the annual gain in biomass or energy through growth and recruitment. See figures 1 and 2.\n
  195. \n
  196. \n
  197. \n
  198. \n
  199. Consider one non-renewable (fossil fuels or nuclear) and one renewable energy source.\n
  200. This may include availability, economic, cultural, environmental and technological factors.\n
  201. This may include availability, economic, cultural, environmental and technological factors.\n
  202. This may include availability, economic, cultural, environmental and technological factors.\n
  203. This may include availability, economic, cultural, environmental and technological factors.\n
  204. This may include availability, economic, cultural, environmental and technological factors.\n
  205. This may include availability, economic, cultural, environmental and technological factors.\n
  206. This may include availability, economic, cultural, environmental and technological factors.\n
  207. \n
  208. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  209. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  210. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  211. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  212. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  213. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  214. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  215. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  216. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  217. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  218. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  219. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  220. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  221. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  222. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  223. Emphasize a systems approach. Students should draw diagrams that show links between the soil, lithosphere, atmosphere and living organisms. The soil as a living system should be considered with reference to a generalized soil profile. Studies of specific soil profiles, for example, podsol, are not required. \nTransfers of material (including deposition) result in reorganization of the soil. There are inputs of organic and parent material, precipitation, infiltration and energy. Outputs include leaching, uptake by plants and mass movement. Transformations include decomposition, weathering and nutrient cycling.\n\n
  224. Consider mineral content, drainage, water-holding capacity, air spaces, biota and potential to hold organic matter, and link these to primary productivity.\n
  225. \n
  226. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  227. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  228. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  229. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  230. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  231. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  232. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  233. Human activities such as overgrazing, deforestation, unsustainable agriculture and irrigation cause processes of degradation. These include soil erosion, toxification and salinization. Desertification (enlargement of deserts through human activities) can be associated with this degradation.\n
  234. Consider: \n* soil conditioners (for example, use of lime and organic materials) \n* wind reduction techniques (wind breaks, shelter belts, strip cultivation)\n* cultivation techniques (terracing, contour plowing)\n* efforts to stop plowing of marginal lands.\n\n
  235. Consider: \n* soil conditioners (for example, use of lime and organic materials) \n* wind reduction techniques (wind breaks, shelter belts, strip cultivation)\n* cultivation techniques (terracing, contour plowing)\n* efforts to stop plowing of marginal lands.\n\n
  236. Consider: \n* soil conditioners (for example, use of lime and organic materials) \n* wind reduction techniques (wind breaks, shelter belts, strip cultivation)\n* cultivation techniques (terracing, contour plowing)\n* efforts to stop plowing of marginal lands.\n\n
  237. Consider: \n* soil conditioners (for example, use of lime and organic materials) \n* wind reduction techniques (wind breaks, shelter belts, strip cultivation)\n* cultivation techniques (terracing, contour plowing)\n* efforts to stop plowing of marginal lands.\n\n
  238. Consider: \n* soil conditioners (for example, use of lime and organic materials) \n* wind reduction techniques (wind breaks, shelter belts, strip cultivation)\n* cultivation techniques (terracing, contour plowing)\n* efforts to stop plowing of marginal lands.\n\n
  239. \n
  240. \n
  241. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  242. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  243. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  244. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  245. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  246. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  247. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  248. Students should appreciate the differences in food production and distribution around the world, including the socio‑political, economic and ecological influences on these.\n
  249. Compare and contrast these in terms of their trophic levels and efficiency of energy conversion. There is no need to consider individual production systems in detail. In terrestrial systems, most food is harvested from relatively low trophic levels (producers and herbivores). However, in aquatic systems, perhaps largely due to human tastes, most food is harvested from higher trophic levels where the total storages are much smaller. Although energy conversions along the food chain may be more efficient in aquatic systems, the initial fixing of available solar energy by primary producers tends to be less efficient due to the absorption and reflection of light by water.\n
  250. Compare and contrast these in terms of their trophic levels and efficiency of energy conversion. There is no need to consider individual production systems in detail. In terrestrial systems, most food is harvested from relatively low trophic levels (producers and herbivores). However, in aquatic systems, perhaps largely due to human tastes, most food is harvested from higher trophic levels where the total storages are much smaller. Although energy conversions along the food chain may be more efficient in aquatic systems, the initial fixing of available solar energy by primary producers tends to be less efficient due to the absorption and reflection of light by water.\n
  251. Compare and contrast these in terms of their trophic levels and efficiency of energy conversion. There is no need to consider individual production systems in detail. In terrestrial systems, most food is harvested from relatively low trophic levels (producers and herbivores). However, in aquatic systems, perhaps largely due to human tastes, most food is harvested from higher trophic levels where the total storages are much smaller. Although energy conversions along the food chain may be more efficient in aquatic systems, the initial fixing of available solar energy by primary producers tends to be less efficient due to the absorption and reflection of light by water.\n
  252. Compare and contrast these in terms of their trophic levels and efficiency of energy conversion. There is no need to consider individual production systems in detail. In terrestrial systems, most food is harvested from relatively low trophic levels (producers and herbivores). However, in aquatic systems, perhaps largely due to human tastes, most food is harvested from higher trophic levels where the total storages are much smaller. Although energy conversions along the food chain may be more efficient in aquatic systems, the initial fixing of available solar energy by primary producers tends to be less efficient due to the absorption and reflection of light by water.\n
  253. Compare and contrast these in terms of their trophic levels and efficiency of energy conversion. There is no need to consider individual production systems in detail. In terrestrial systems, most food is harvested from relatively low trophic levels (producers and herbivores). However, in aquatic systems, perhaps largely due to human tastes, most food is harvested from higher trophic levels where the total storages are much smaller. Although energy conversions along the food chain may be more efficient in aquatic systems, the initial fixing of available solar energy by primary producers tends to be less efficient due to the absorption and reflection of light by water.\n
  254. Compare and contrast these in terms of their trophic levels and efficiency of energy conversion. There is no need to consider individual production systems in detail. In terrestrial systems, most food is harvested from relatively low trophic levels (producers and herbivores). However, in aquatic systems, perhaps largely due to human tastes, most food is harvested from higher trophic levels where the total storages are much smaller. Although energy conversions along the food chain may be more efficient in aquatic systems, the initial fixing of available solar energy by primary producers tends to be less efficient due to the absorption and reflection of light by water.\n
  255. The systems selected should be both terrestrial or both aquatic. In addition, the inputs and outputs of the two systems should differ qualitatively and quantitatively (not all systems will be different in all aspects). The pair of examples could be North American cereal farming and subsistence farming in some parts of South‑East Asia, intensive beef production in the developed world and the Maasai tribal use of livestock, or commercial salmon farming in Norway/Scotland and rice‑fish farming in Thailand. Other local or global examples are equally valid. \nFactors to be considered should include:\n* inputs—for example, fertilizers (artificial and natural), irrigation water, pesticides, fossil fuels, food distribution, human labour, seed, breeding stock\n* system characteristics—for example, selective breeding, genetically engineered organisms, monoculture versus polyculture, sustainability\n* socio‑cultural—for example, for the Maasai, cattle equals wealth and quantity is more important than quality\n* environmental impact—for example, pollution, habitat loss, reduction in biodiversity, soil erosion \n* outputs—for example, food quality and quantity, pollutants, soil erosion.\n\n
  256. The systems selected should be both terrestrial or both aquatic. In addition, the inputs and outputs of the two systems should differ qualitatively and quantitatively (not all systems will be different in all aspects). The pair of examples could be North American cereal farming and subsistence farming in some parts of South‑East Asia, intensive beef production in the developed world and the Maasai tribal use of livestock, or commercial salmon farming in Norway/Scotland and rice‑fish farming in Thailand. Other local or global examples are equally valid. \nFactors to be considered should include:\n* inputs—for example, fertilizers (artificial and natural), irrigation water, pesticides, fossil fuels, food distribution, human labour, seed, breeding stock\n* system characteristics—for example, selective breeding, genetically engineered organisms, monoculture versus polyculture, sustainability\n* socio‑cultural—for example, for the Maasai, cattle equals wealth and quantity is more important than quality\n* environmental impact—for example, pollution, habitat loss, reduction in biodiversity, soil erosion \n* outputs—for example, food quality and quantity, pollutants, soil erosion.\n\n
  257. The systems selected should be both terrestrial or both aquatic. In addition, the inputs and outputs of the two systems should differ qualitatively and quantitatively (not all systems will be different in all aspects). The pair of examples could be North American cereal farming and subsistence farming in some parts of South‑East Asia, intensive beef production in the developed world and the Maasai tribal use of livestock, or commercial salmon farming in Norway/Scotland and rice‑fish farming in Thailand. Other local or global examples are equally valid. \nFactors to be considered should include:\n* inputs—for example, fertilizers (artificial and natural), irrigation water, pesticides, fossil fuels, food distribution, human labour, seed, breeding stock\n* system characteristics—for example, selective breeding, genetically engineered organisms, monoculture versus polyculture, sustainability\n* socio‑cultural—for example, for the Maasai, cattle equals wealth and quantity is more important than quality\n* environmental impact—for example, pollution, habitat loss, reduction in biodiversity, soil erosion \n* outputs—for example, food quality and quantity, pollutants, soil erosion.\n\n
  258. The systems selected should be both terrestrial or both aquatic. In addition, the inputs and outputs of the two systems should differ qualitatively and quantitatively (not all systems will be different in all aspects). The pair of examples could be North American cereal farming and subsistence farming in some parts of South‑East Asia, intensive beef production in the developed world and the Maasai tribal use of livestock, or commercial salmon farming in Norway/Scotland and rice‑fish farming in Thailand. Other local or global examples are equally valid. \nFactors to be considered should include:\n* inputs—for example, fertilizers (artificial and natural), irrigation water, pesticides, fossil fuels, food distribution, human labour, seed, breeding stock\n* system characteristics—for example, selective breeding, genetically engineered organisms, monoculture versus polyculture, sustainability\n* socio‑cultural—for example, for the Maasai, cattle equals wealth and quantity is more important than quality\n* environmental impact—for example, pollution, habitat loss, reduction in biodiversity, soil erosion \n* outputs—for example, food quality and quantity, pollutants, soil erosion.\n\n
  259. The systems selected should be both terrestrial or both aquatic. In addition, the inputs and outputs of the two systems should differ qualitatively and quantitatively (not all systems will be different in all aspects). The pair of examples could be North American cereal farming and subsistence farming in some parts of South‑East Asia, intensive beef production in the developed world and the Maasai tribal use of livestock, or commercial salmon farming in Norway/Scotland and rice‑fish farming in Thailand. Other local or global examples are equally valid. \nFactors to be considered should include:\n* inputs—for example, fertilizers (artificial and natural), irrigation water, pesticides, fossil fuels, food distribution, human labour, seed, breeding stock\n* system characteristics—for example, selective breeding, genetically engineered organisms, monoculture versus polyculture, sustainability\n* socio‑cultural—for example, for the Maasai, cattle equals wealth and quantity is more important than quality\n* environmental impact—for example, pollution, habitat loss, reduction in biodiversity, soil erosion \n* outputs—for example, food quality and quantity, pollutants, soil erosion.\n\n
  260. The systems selected should be both terrestrial or both aquatic. In addition, the inputs and outputs of the two systems should differ qualitatively and quantitatively (not all systems will be different in all aspects). The pair of examples could be North American cereal farming and subsistence farming in some parts of South‑East Asia, intensive beef production in the developed world and the Maasai tribal use of livestock, or commercial salmon farming in Norway/Scotland and rice‑fish farming in Thailand. Other local or global examples are equally valid. \nFactors to be considered should include:\n* inputs—for example, fertilizers (artificial and natural), irrigation water, pesticides, fossil fuels, food distribution, human labour, seed, breeding stock\n* system characteristics—for example, selective breeding, genetically engineered organisms, monoculture versus polyculture, sustainability\n* socio‑cultural—for example, for the Maasai, cattle equals wealth and quantity is more important than quality\n* environmental impact—for example, pollution, habitat loss, reduction in biodiversity, soil erosion \n* outputs—for example, food quality and quantity, pollutants, soil erosion.\n\n
  261. This could be illustrated through the use of examples, such as:\n* the way in which the low population densities and belief systems of shifting cultivators links with the ecosystem of “slash and burn” agriculture\n* the relationship between high population densities, culture, soil fertility and the wet-rice ecosystem of South‑East Asia\n* the link between the political economy of modern urban society, corporate capitalism and agro-ecosystems.\n\n
  262. This could be illustrated through the use of examples, such as:\n* the way in which the low population densities and belief systems of shifting cultivators links with the ecosystem of “slash and burn” agriculture\n* the relationship between high population densities, culture, soil fertility and the wet-rice ecosystem of South‑East Asia\n* the link between the political economy of modern urban society, corporate capitalism and agro-ecosystems.\n\n
  263. This could be illustrated through the use of examples, such as:\n* the way in which the low population densities and belief systems of shifting cultivators links with the ecosystem of “slash and burn” agriculture\n* the relationship between high population densities, culture, soil fertility and the wet-rice ecosystem of South‑East Asia\n* the link between the political economy of modern urban society, corporate capitalism and agro-ecosystems.\n\n
  264. This could be illustrated through the use of examples, such as:\n* the way in which the low population densities and belief systems of shifting cultivators links with the ecosystem of “slash and burn” agriculture\n* the relationship between high population densities, culture, soil fertility and the wet-rice ecosystem of South‑East Asia\n* the link between the political economy of modern urban society, corporate capitalism and agro-ecosystems.\n\n
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  293. Only a small fraction (2.6% by volume) of the Earth’s water supply is fresh water. Of this, over 80% is in the form of ice caps and glaciers, 0.6% is groundwater and the rest is made up of lakes, soil water, atmospheric water vapour, rivers and biota in decreasing order of storage size. Precise figures are not required.\n
  294. Only a small fraction (2.6% by volume) of the Earth’s water supply is fresh water. Of this, over 80% is in the form of ice caps and glaciers, 0.6% is groundwater and the rest is made up of lakes, soil water, atmospheric water vapour, rivers and biota in decreasing order of storage size. Precise figures are not required.\n
  295. Only a small fraction (2.6% by volume) of the Earth’s water supply is fresh water. Of this, over 80% is in the form of ice caps and glaciers, 0.6% is groundwater and the rest is made up of lakes, soil water, atmospheric water vapour, rivers and biota in decreasing order of storage size. Precise figures are not required.\n
  296. Only a small fraction (2.6% by volume) of the Earth’s water supply is fresh water. Of this, over 80% is in the form of ice caps and glaciers, 0.6% is groundwater and the rest is made up of lakes, soil water, atmospheric water vapour, rivers and biota in decreasing order of storage size. Precise figures are not required.\n
  297. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  298. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  299. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  300. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  301. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  302. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  303. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  304. Irrigation, industrialization and population increase all make demands on the supplies of fresh water. Global warming may disrupt rainfall patterns and water supplies. The hydrological cycle supplies humans with fresh water but we are withdrawing water from underground aquifers and degrading it with wastes at a greater rate than it can be replenished. Consider the increased demand for fresh water, inequity of usage and political consequences, methods of reducing use and increasing supplies. A case study must be explored that covers some of these issues and demonstrates either sustainable or unsustainable water use.\n
  305. \n
  306. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  307. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  308. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  309. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  310. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  311. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  312. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  313. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  314. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  315. By examining carefully the requirements of a given species and the resources available, it might be possible to estimate the carrying capacity of that environment for the species. This is problematic in the case of human populations for a number of reasons. The range of resources used by humans is usually much greater than for any other species. Furthermore, when one resource becomes limiting, humans show great ingenuity in substituting one resource for another. Resource requirements vary according to lifestyles, which differ from time to time and from population to population. Technological developments give rise to continual changes in the resources required and available for consumption. \nHuman populations also regularly import resources from outside their immediate environment, which enables them to grow beyond the boundaries set by their local resources and increases their carrying capacity. While importing resources in this way increases the carrying capacity for the local population, it ha\n
  316. Human carrying capacity is determined by the rate of energy and material consumption, the level of pollution and the extent of human interference in global life-support systems. While reuse and recycling reduce these impacts, they can also increase human carrying capacity.\n
  317. \n
  318. Why societies collapse: Jared Diamond. \nGuns, Germs and Steel\n5 checks:\n1) human env impact\n2) climate change\n3) relations with friendlies that can sustain the society\n4) relation with hostiles\n5) political-economic-societal-cultural attitudes: not open to change\n\nBlue print for trouble:\nConflict of interest (Elite vs. society as a whole)\nHard to make ‘good’ decisions when can recognize that strengths can be the problem???\n\n“Since we made the problems, we can also solve the problems”\n\n\n
  319. The ecological footprint of a population is the area of land, in the same vicinity as the population, that would be required to provide all the population’s resources and assimilate all its wastes. As a model, it is able to provide a quantitative estimate of human carrying capacity. It is, in fact, the inverse of carrying capacity. It refers to the area required to sustainably support a given population rather than the population that a given area can sustainably support.\n
  320. The ecological footprint of a population is the area of land, in the same vicinity as the population, that would be required to provide all the population’s resources and assimilate all its wastes. As a model, it is able to provide a quantitative estimate of human carrying capacity. It is, in fact, the inverse of carrying capacity. It refers to the area required to sustainably support a given population rather than the population that a given area can sustainably support.\n
  321. The ecological footprint of a population is the area of land, in the same vicinity as the population, that would be required to provide all the population’s resources and assimilate all its wastes. As a model, it is able to provide a quantitative estimate of human carrying capacity. It is, in fact, the inverse of carrying capacity. It refers to the area required to sustainably support a given population rather than the population that a given area can sustainably support.\n
  322. The ecological footprint of a population is the area of land, in the same vicinity as the population, that would be required to provide all the population’s resources and assimilate all its wastes. As a model, it is able to provide a quantitative estimate of human carrying capacity. It is, in fact, the inverse of carrying capacity. It refers to the area required to sustainably support a given population rather than the population that a given area can sustainably support.\n
  323. The ecological footprint of a population is the area of land, in the same vicinity as the population, that would be required to provide all the population’s resources and assimilate all its wastes. As a model, it is able to provide a quantitative estimate of human carrying capacity. It is, in fact, the inverse of carrying capacity. It refers to the area required to sustainably support a given population rather than the population that a given area can sustainably support.\n
  324. The ecological footprint of a population is the area of land, in the same vicinity as the population, that would be required to provide all the population’s resources and assimilate all its wastes. As a model, it is able to provide a quantitative estimate of human carrying capacity. It is, in fact, the inverse of carrying capacity. It refers to the area required to sustainably support a given population rather than the population that a given area can sustainably support.\n
  325. Although the accurate calculation of an ecological footprint might be very complex, an approximation can be achieved through the steps outlined in figures 3 and 4.\nThe total land requirement (ecological footprint) can then be calculated as the sum of these two per capita requirements, multiplied by the total population.\nThis calculation clearly ignores the land or water required to provide any aquatic and atmospheric resources, assimilate wastes other than carbon dioxide (CO2), produce the energy and material subsidies imported to the arable land for increasing yields, replace loss of productive land through urbanization, and so on.\n\nsee figure 3 & figure 4\n\n
  326. Although the accurate calculation of an ecological footprint might be very complex, an approximation can be achieved through the steps outlined in figures 3 and 4.\nThe total land requirement (ecological footprint) can then be calculated as the sum of these two per capita requirements, multiplied by the total population.\nThis calculation clearly ignores the land or water required to provide any aquatic and atmospheric resources, assimilate wastes other than carbon dioxide (CO2), produce the energy and material subsidies imported to the arable land for increasing yields, replace loss of productive land through urbanization, and so on.\n\nsee figure 3 & figure 4\n\n
  327. Although the accurate calculation of an ecological footprint might be very complex, an approximation can be achieved through the steps outlined in figures 3 and 4.\nThe total land requirement (ecological footprint) can then be calculated as the sum of these two per capita requirements, multiplied by the total population.\nThis calculation clearly ignores the land or water required to provide any aquatic and atmospheric resources, assimilate wastes other than carbon dioxide (CO2), produce the energy and material subsidies imported to the arable land for increasing yields, replace loss of productive land through urbanization, and so on.\n\nsee figure 3 & figure 4\n\n
  328. Although the accurate calculation of an ecological footprint might be very complex, an approximation can be achieved through the steps outlined in figures 3 and 4.\nThe total land requirement (ecological footprint) can then be calculated as the sum of these two per capita requirements, multiplied by the total population.\nThis calculation clearly ignores the land or water required to provide any aquatic and atmospheric resources, assimilate wastes other than carbon dioxide (CO2), produce the energy and material subsidies imported to the arable land for increasing yields, replace loss of productive land through urbanization, and so on.\n\nsee figure 3 & figure 4\n\n
  329. Although the accurate calculation of an ecological footprint might be very complex, an approximation can be achieved through the steps outlined in figures 3 and 4.\nThe total land requirement (ecological footprint) can then be calculated as the sum of these two per capita requirements, multiplied by the total population.\nThis calculation clearly ignores the land or water required to provide any aquatic and atmospheric resources, assimilate wastes other than carbon dioxide (CO2), produce the energy and material subsidies imported to the arable land for increasing yields, replace loss of productive land through urbanization, and so on.\n\nsee figure 3 & figure 4\n\n
  330. Although the accurate calculation of an ecological footprint might be very complex, an approximation can be achieved through the steps outlined in figures 3 and 4.\nThe total land requirement (ecological footprint) can then be calculated as the sum of these two per capita requirements, multiplied by the total population.\nThis calculation clearly ignores the land or water required to provide any aquatic and atmospheric resources, assimilate wastes other than carbon dioxide (CO2), produce the energy and material subsidies imported to the arable land for increasing yields, replace loss of productive land through urbanization, and so on.\n\nsee figure 3 & figure 4\n\n
  331. Although the accurate calculation of an ecological footprint might be very complex, an approximation can be achieved through the steps outlined in figures 3 and 4.\nThe total land requirement (ecological footprint) can then be calculated as the sum of these two per capita requirements, multiplied by the total population.\nThis calculation clearly ignores the land or water required to provide any aquatic and atmospheric resources, assimilate wastes other than carbon dioxide (CO2), produce the energy and material subsidies imported to the arable land for increasing yields, replace loss of productive land through urbanization, and so on.\n\nsee figure 3 & figure 4\n\n
  332. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  333. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  334. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  335. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  336. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  337. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  338. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  339. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  340. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  341. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  342. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  343. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  344. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  345. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  346. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  347. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  348. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  349. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  350. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  351. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  352. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  353. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  354. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  355. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  356. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  357. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  358. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  359. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  360. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  361. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  362. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  363. Data for food consumption are often given in grain equivalents, so that a population with a meat‑rich diet would tend to consume a higher grain equivalent than a population that feeds directly on grain.\nStudents should be aware that in MEDCs, about twice as much energy in the diet is provided by animal products than in LEDCs. Grain production will be higher with intensive farming strategies. Populations more dependent on fossil fuels will have higher CO2 emissions. Fixation of CO2 is clearly dependent on climatic region and vegetation type. These and other factors will often explain the differences in the ecological footprints of populations in LEDCs and MEDCs.\n\n
  364. Many policy factors influence human population growth. Domestic and international development policies (which target the death rate through agricultural development, improved public health and sanitation, and better service infrastructure) may stimulate rapid population growth by lowering mortality without significantly affecting fertility.\nSome analysts believe that birth rates will come down by themselves as economic welfare improves and that the population problem is therefore better solved through policies to stimulate economic growth. \nEducation about birth control encourages family planning.\nParents may be dependent on their children for support in their later years and this may create an incentive to have many children.\nUrbanization may also be a factor in reducing crude birth rates.\nPolicies directed towards the education of women, enabling women to have greater personal and economic independence, may be the most effective method for reducing population pressure.\n\n
  365. Because technology plays such a large role in human life, many economists argue that human carrying capacity can be expanded continuously through technological innovation. For example, if we learn to use energy and material twice as efficiently, we can double the population or the use of energy without necessarily increasing the impact (load) imposed on the environment. However, to compensate for foreseeable population growth and the economic growth that is deemed necessary, especially in developing countries, it is suggested that efficiency would have to be raised by a factor of 4 to 10 to remain within global carrying capacity.\n
  366. \n