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6GEO3 Unit 3 Contested Planet
Topic 2 Water Conflicts
What is this topic about?
• Water Conflicts is the
  second of the ‘resources’
  topics
• It examines the range of
  conflicts associated with
  the supply and demand
  patterns of the
  fundamental resource of
  water.
• Water supplies and quality
  vary globally, and actual
  and potential conflicts
  arise from the gap between
  growing demands and
  diminishing supplies.        Mega technological fixes for mega problems
• There are also growing            (Hoover Dam, USA) versus Low tech
  pressures resulting from           solutions (Taanka storage of India)
  climate change
CONTENTS
           1.The geography of water supply
           2. The risks of water insecurity
           3. Water conflicts and the future




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2. The risks of water insecurity
    • What are the potential implications of an increasingly ‘water
      insecure’ world?
                                                 Water conflicts
  Water supply problems                   Where demand exceeds supply
Increasing water shortages                and no effective management
  may be more important                    operates, then there will be
  than energy shortages-                  conflicts between the various
    because there is no                          players involved
       alternative!                                                               Water geopolitics
                                                                            The conflicts between nation
                                                                          states, despite the international
                                                                           agreement called the Helsinki
                                                                           Rules designed to create more
                                                                               equitable use of water
                                                                            extending across boundaries




             Water transfers
   Of this precious resource by either
   diverting the actual river, or using
   canals . Long carried out at a small
    scale but increasingly over larger
   distances, and even transboundary
1.The geography of water supply and demand
                           Climate
                           •Climatic zones are critical in determining water
•River systems             availability
transport this             •Equatorial / tropical areas have higher rainfall than
water, often at            temperate / arctic areas.                                    Physical
continental scale.         •High altitude areas have snowpack water reserves
                           released in late spring.
                                                                                      influences
•Flows increase
downstream as              •Monsoon areas have one main peak, equatorial areas      on water supply
tributaries enter.         two peaks.                                                 and scarcity
•Seasonal changes          • Some tropical areas experience recurring drought
in temperature can
create distinctive
river regimes.
•The relationship
between water
inputs and outputs
is water balance



                                                                                             97.2%
           Geology                                                                          Ocean &
•Surface drainage occurs on                                                                saltwater
rocks which are impermeable
such as granite and clay.
•Permeable rocks like
limestone, chalk and some
sandstones store water, called
aquifers.
Human influences on water supply
                     and scarcity
• Humans affect the hydrological cycle at   •   Blue water flow is the visible part of
                                                the hydrological system: surface flows
  many points of flows and storage:             and then recharging aquifers
                                            •   Green water flow is water intercepted,
                                                stores and released by vegetation by
                                                evaporation and transpiration
                                            •   Grey water is polluted water
                                                Supply can be from:
                                               Surface sources
                                                groundwater sources
                                               In the UK 2/3 of supply is from surface
                                                and 1/3 from groundwater, with
                                                regional variations.
                                            •   Freshwater is effectively a finite
                                                resource since only about 1% of
                                                freshwater is easily available for human
                                                use.
                                            •   The water footprint indicates how
                                                much is required by consumers- and in
                                                an increasingly globalised world, the
                                                footprint of someone in a country like
                                                the UK will not be just local as so many
                                                products using water will have been
                                                produced elsewhere!
Some key definitions
           low level of water             •
                                      measured by annual renewable flows (in cubic metres) per head of
Water
shortage   supply relative to basic   population, or the number of people dependent on each unit of water
           needs.

Water      often taken as less than   •growing conflict between users and competition for water
stress     1700m3 per person per      • declining standards of reliability and service
           year                       • harvest failures and food insecurity.

Water      supply of water per        •an imbalance of supply and demand
                                                            Domestic
scarcity   person falls below         •a high rate of use compared to available supply, especially if the
           1000m3/year                remaining supply is difficult or costly to tap.

Physical   reached when 60% of        Physical water scarcity is shown by:
water      river flows are diverted   • Severe environmental degradation
           for agricultural,          •Declining groundwater and water allocation which favours some groups
scarcity
           industrial & municipal     over others.
           purposes; globally over    •Arid and semi-arid areas are most at risk
           75% is now used

Economic   when less than 25% of      This is often due to political reasons and conflict: easiest to solve by low
water      rivers are used, and       technology solutions: small dams, water harvesting from roof tops etc. It is
           there is abundant          targeted by NGOs like Water Aid
scarcity
           supply potential: water
           does not reach the
           poorest people
Water scarcity hotspots
 According to the International Water Management
Institute environmental research organisation global
  water stress is increasing, and 1/3 rd of all people
                                                                              Aral Sea faces environmental
 face some sort of water scarcity. Agricultural uses                     catastrophe, although recent attempts
       dominate in the growing need for food.                           to reduce impacts of river diversions for
                                                                              especially cotton production
                                                                                                                    Severe water scarcity N China,
                    Egypt imports > 50% of its food because                                                         leading to South North transfer
                             of physical scarcity                                                                       scheme-see later slide


                                                                                                              R Ganges: physical stress from
     Ogallala aquifer                                                                                         pollution and over abstraction
    provides 1/3 all US
 irrigation water, but is
seriously depleted: the
water table is dropping
     by about 1m/yr.                                                                                                  Australia; diversion ¼
   As a ‘fossil’ reserve,                                                                                               of all water away
  formed probably from                                                                                                 from Murray Darling
past glacial meltwater                                                                                                 Basin for agriculture
flows, it is effectively a
                                                    Much of sub Saharan Africa suffers
      finite resource
                                                      from economic scarcity from
                                                    especially poverty but also lack of
                                                   infrastructural development . Some
                                                          1 bn people involved1

           Little/no water scarcity
           Physical water scarcity- not necessarily dry areas but those where over 75% river flows are used by agriculture, industry or
           domestic consumers
           Economic water scarcity- less than 25% rivers used, and abundant supply potential but not reaching the poorest people .

           Approaching physical water scarcity – More than 60% river flows allocated, and in the near future these river basins will have
           physical scarcity
Water conflicts
 Population growth
 Consumer demand                                                    Reductions because of:
  Industrial growth                                            •Users abstracting/polluting
Agricultural demand                                            upstream
                                                               •Deteriorating quality
                                                               •Impact of climate change
                      DEMANDS?                SUPPLY?
                        Rising                Diminishing
                                                                            PRESSURE POINT- ie
                                                                           need for management.
                                                                          This is shown spatially as
                                                                           a ‘hotspot’ of conflict,
                                                                           see map on next slide.
                                 DIFFERENT                                   Pressure and hence
                                   USERS?                                 tension and conflict may
                                                                            be over surface flow
                                  Conflicting                               and/or groundwater
                                   demands                                          supplies
                                                                          Dams and diversions and
                                                                            loss of wetlands are
                                                                           particularly contested.
                 •International conflicts i.e. basin crosses
                 national boundaries
                 •Internal conflicts ie within a country
                 •Conservation versus exploitation
Present and potential water conflict hotspots
   •   As water supply decreases, tensions will increase as different players try to access common water
       supplies
   •   Many conflicts are transboundary in nature, either between states or countries River basins currently in dispute

                                                                                           River basins at risk in the future
                                      Tigris-Euphrates
                                     Iraq + Syria concerns that
                                     Turkey’s GAP project will divert                      Large International drainage basins
                                     their water                          Ob
   Colorado: disputes
  between the 7 US
  states and Mexico it                                                                                       The Aral Sea, an
  flows through. The                                                                                         inland drainage basin,
  river is so overused,                                                                                      once the world’s 4th
  that it no longer                                                                                          largest inland lake has
  reaches the sea!.                                                                                          shrunk sine the 1950s
  90% abstracted                                Lake                                         Mekong          after the 2 rivers
  before reaches                                Chad                                                         feeding it: the Amu
  Mexico                                                                                                     Dayra and Syr Darya
                                                                                  Ganges
                                                                                                             were diverted for
                                                                                                             irrigation.
                                                                                                              By 2007 the sea was
                                                    Okavango            Zambezi                              10% of original volume
                                                                                                             and split into 2 lakes.
                          La Plata
                                     Insert Figure 2.11 page 47
                                                 Orange                                                      The ex soviet states
                                                                                                             are in conflict:
Note: although there have been rising tensions                                                               Uzbekistan ,
globally, many areas demonstrate effective                 Nile hotly disputed
                                                           between Ethiopia and                              Turkmenistan and
management to diffuse the situation and create                                                               Kazakstan.
                                                           Sudan ,who control its
more equitable and sustainable demand-supply
                                                           headwaters, and Egypt .
balance, such as the Mekong River Committee,&
the Nile River Initiative
Hydropolitics and geopolitics
                              Political negotiations centred on conflicts over the shared use of
                              water sources

History of hydropolitics in                                             •The Nile is the world’s longest river , 6,500kms,
Nile Basin                                                              2.9km2 catchment,10% of Africa, running through
•tensions due to the                                                    10 countries with 360 million people depending
dominance of Egypt                                                      on it for survival.
• civil wars in Sudan                                                   •Growing issues of desertification & salination and
Ethiopia                                                                increased evaporation linked to climate change
• tensions from Egypt’s                                                 •About 85 % water originates from Eritrea and
treaties dating back to the                                             Ethiopia, but 94 % is used by Sudan and Egypt.
1929 and 1959 Nile Water
Agreements.
• Upstream states                                                       Evidence of more effective co-operation
increasingly challenging                                                •   The Nile Basin Initiative, system of
Egypt’s dominance.                                                          cooperative management which started
•Ethiopia wants to use the                                                  late 1990s
Nile River for HEP plants                                               •   All countries except Eritrea working with
and industrial development.                                                 The World Bank and bi-lateral aid donors .
                                                                        •   Community level involvement .
                                                                        •   Managers visited Colorado River recently
                                                                            to see how effectively the 1922 River
       Tech Fix ;                                                           Water Compact and its ‘law of the river’
  The megaprojects of                                                       works
  dams like Aswan are
        famous.                                                         •    1996 Helsinki Rules on the Uses of the
 Latest high tech is the                                                     Waters of International Rivers -
  1990sproject called                                                        regulating how transboundary rivers and
 ‘Tecconile’ a joint GIS                                                     groundwater are managed
 system to help monitor
                                                                        •    The Nile Basin is an example that ‘Water
   and plan the basin
                                                                             Wars’ may be averted
Water transfers- a quick fix?

           Source area                                             Receiving area




              Examples of existing schemes                                     Proposed schemes
International                National:                   International               National:
Lesotho to South Africa:     Snowy Mountains-Australia   Turkey to Israel undersea    South-North transfer- China
Lesotho Highlands Water      Melamchi Nepal              pipelines                   Ebro -Spain
Project                      Tagus-Mercia Spain          Austrian Alps to Spain +    Ob to the Aral Sea
Turkey to Israel by tanker                               Greece by pipeline          NAWAPA Alaska to California
Mega Tech Fixes: China’s South–North water transfer
                                                                                                            One of the
        Demand from industrial centres, high population density and intensive agriculture.
                Low rainfall and over abstracted groundwater: physical scarcity                             largest
                                                                                                            water
                                                                                                            transfers
                                                        Central routes                                      globally.
                                                        1267 km diversion. May         Beijing              Aim: to divert
   Externalities          Western                       have to use some water                              45bn m3/year
•Industrial growth         Routes                       from 3 Gorges reservoir           Tianjin           from the
along routeways          Work starts                    to help                                             water surplus
will exacerbate           2010, at                                                           Eastern        river basins of
existing pollution           high              Yellow
                                                                                             Route          the S and E
                          altitude,             River                                                       to the water
problems                                                                                     1,155km
•Changes in water           very                                                             long           deficit areas
balances:                 difficult                                                          diversion      of the North,
reduced water in        500kms at 3-                                                                        especially
Yangtze means              5000m                                                                            Beijing and
                                                              CHINA                              Shanghai
less dilution and        above sea                                                                          Tianjin
more pollution              level
• Displaced
people especially
                                                                   Yangtze River
from Dang Jiang
Kou dam ......
                                   0 mls 250




                                                                                   South China
 Originally planned 1952, started 2002 ,due to finish 2050. Chief player:          Sea
 Government sponsored ‘South to North Water Transfer Project Company,
 with each province having a local water company. Involves huge civil
 engineering works, 3 major canals, pipelines, tunnels, pumping stations
Water issues in the Middle East
   In the Northern
 region: Turkey is in     The Aral Sea, on the boundary of the Middle East   •   There are
  dispute with Syria       and Asia is suffering from over abstraction and       significant
     and Iraq over                             pollution                         disputes over
                                                                                 access to water
damming more of the
                                                                                 already in this area
 Tigris and Euphrates
         river                                                               •   The combination
                                                                                 of a growing
                                                                                 population and low
    In the Western                                                               seasonal rainfall
   Region: Israelis,                                                             are the main
        Syrians,                                                                 causes.
    Jordanians and                                                           •   Is the energy
 Lebanese are all in                                                             dependent
     dispute over                                                                technological fix of
   shrinking water                                                               desalination the
        supplies                                                                 answer?
    A contributory                                                           •   Photo of a plant in
  factor to the 1967                                                             Dubai
   Arab-Israeli war
Water storage is in 3
 huge aquifers under
the Israeli mountains
and coastal strip and
     the R Jordan
3. Water conflicts and the future
   What are the possible conflicts and solutions to increasing demands for water?
   This section looks at 4 themes, and the table below summarises three scenarios for the future
   1.     Trends in water demand globally and locally
   2.     Water players
   3.     Responses to need to increasing water supply and the issues these strategies raise
   4.     The role of technology in water supply


 Business as       The cost of water will increase
 usual             Water consumption will increase resulting in declining stores
                   Food transfers will mitigate shortage of water in areas where agriculture declines

 Water Crisis      Demand will outstrip supply
                   The proportion of the world’s population without access to clean water will
                   increase
                   Food insecurity and migration will increase
                   Conflicts of water supplies (intra and inter state) become more likely
 Sustainable       Agricultural and household water prices will double in the developed world and
 Water             triple in the developing world
                   Global water consumption will fall, although the gap between per capita use will
                   close
                   Green water flows will increase
                   Improvements in water harvesting and farming techniques allow food yields to
                   increase whilst water consumption declines

From: 2002 International Food Policy and Research Institute future models
World Water Days- trying to be more
                          sustainable?
•   The importance of water in managing global issues is
                                                                      Previous Themes for World Water
    shown by the profile given to it by the UN:                           Days
•   It declared 2005 to 2015 as the International Decade for          •   2009 Transboundary water
    Action, "Water for Life”.                                         •   2008 Sanitation
•   Every year on March 22nd the UN gives a theme to                  •   2007 Coping with water
    publicise current issues. 2010 World Water Day:                       scarcity
    dedicated to the theme of water quality.                          •   2006 Water and Culture
•   Such global action is rooted in the iconic Earth Summit           •   2005 Water for Life
    on Environment and Development (UNCED) in Rio de                  •   2004: Water and Disasters
    Janeiro in 1992, and the creation of Agenda21 (the                •   2003: Water for the Future
    Blueprint for planet management at global scale)and               •   2002: Water for Development
    Local Agenda 21( global problems, local action)                   •   2001: Water and Health

     UN MDG TARGET set in 2000: Halve, by 2015, the proportion of the population without
     sustainable access to safe drinking water and basic sanitation.
      The world is ahead of schedule in meeting the 2015 drinking water target.
     Yet a number of countries face an ‘uphill battle’: 884 million people still rely on unimproved
     water sources for their drinking, cooking, bathing and other domestic activities.
      Of these, almost 85 % (746 million people) live in rural areas.
     1990 to 2006, 1.1 billion people in the developing world received access to toilets, latrines and
     other forms of improved sanitation.
     But this leaves 1.4 billion people still needing such facilities if the 2015 target is to be met.
Water Players and decision makers
    •     Different players have conflicting views on water insecurity
    •     One player may have quite complex views; most Governments will have departments
          wanting conservation as opposed to development
    •     You need to identify the ‘stakeholders’ in any particular case study, and then the role
          of the ‘gatekeepers’ who wield power. The next slide shows a classification of players



 Political: water is
   a human need                                                                         Economic
•International                                                                     •International:
organisations e.g.                                                                 World Bank & IMF
UN                                                                                 •TNCs and
•Government                                                                        developers
•Regional & local                                                                  •Businesses and
councils                                                                           users
•Lobbyists &
pressure groups
                                            Photograph of Aral Sea
                                            with grounded tanker


          Social: water is a human right                          Environmental
        •Individuals                                           •Conservationists
        •Residents                                             •Scientists &
        •Consumers land owners,                                planners
        health officials, NGOs like
        Water Aid
Classifying the water players

             Political                     Economic              Social                Environmental
Global       World Bank funds megaprojects to improve supply. Has become more environmentally
             conscious. This group also has businesses and TNCs
             UN Millenium Development Goal called The Water Target:"Halve, by 2015, the proportion of
             people without sustainable access to safe drinking water and basic sanitation "
             World Health Organisation
             G8 Summits : 2002 Evian action Plan, focus on       The role of NGOs      WWF and
             water, and 2009 L’Aquila summit increased aid to    such as Water Aid     Friends of the
             poorer countries to help MDGs, + highlighted need   or GLOWS has been     Earth campaign for
             for more integrated management                      crucial in managing   full Environmental
                                                                 water supplies        Impact Assessments
                                                                 Countries such as     of major projects
National     Government owned water        TNCs (Viendi and      India, have           likely to damage
             companies, eg China           Suez RWE which        mounted successful    the environment
                                           owns Thames           massive               This group will
                                           Water, American       community-led         include many
Local                                      Water Works           campaigns on things   scientists and
                                           Companies             like elimination of   researchers
                                           providing             open defecation       At a local scale
                                           technological fixes   Government            NIMBY groups will
                                                                 Health Agencies       campaign
                                                                 from national to
                                                                 local scale

Individual                                       6.9 billion consumers
Responses: Management strategies
•   Water conflicts can be managed in a range of different ways
•   There is a spectrum of different management strategies
•   Some are sustainable as they balance ecological and human needs


                                        Strategies rely on technology?
What is                  Present          Obstacles to sustainable            Future policies?
Sustainability?          policies         management                          Longer term?
Millennium               Driven by        •Climate change uncertainty and     Need more
Ecosystem                short term       effects                             research,
Assessment               economic +       •Natural variability of water       information and
definition:              political        •Pressures caused by human          monitoring
A characteristic or      concerns         activities and rapid growth of      especially on
state whereby the        Often do not     transition economies towards a      aquifers in
needs of the present     include          consumerist society                 developing
and local population     science and      •Increased water demands            countries
can be met without       effective        •Gross inefficiencies in use        More
compromising the         technology       •Poor existing quality of supply    partnerships?
ability of future                         across huge areas of world          More community
generations or                            •Funding                            involvement?
populations in other                      •Access to appropriate technology   More
locations to meet                                                             accountable?
their needs.
Low tech solutions to water :
                         a case study
                            The problem: The River WAKAL area of Rajasthan in NW India is one of
•   Water                   the driest and poorest areas in India. Subsistence agriculture dominates.
    management              96% of rainfall is from the 3-4 month monsoon (late June through
    often focuses on
                            September.) and the traditional methods of using groundwater and
    large scale,
    technologically         conserving surface water are falling short of demands
    advanced mega-       A solution? Basic technology and
    projects             information is channelled through the NGO:
•   These often have     GLOWS( global water for sustainability
    complex costs and    project) a partnership between World Vision
    benefits             India and Florida International University.
•   Water                Methods:
    conservation and     1. Increasing simple low tech appropriate
    restoration of       and intermediate solutions to increase
    supply have a role   storage:
                         •Increased rainwater harvesting
•   Small scale,
                         •Improved storage system at a family scale:
    bottom-up
                         Taankas: 3 m in diameter , 3-4 m deep,
    schemes are
                         most below land level with a side opening to
    likely to be
                         allow surface flow in. They store about
    important in the
                         20,000litres, and once full provide water for   Changes: Traditional low tech
    developing world                                                     methods of water conservation.:
                         a family until next monsoon.
•   However, unless
    duplicated on
                         2. Using colourful drama performed by           stone dams, Persian water
                         trained locals to villagers to illustrate the
    large scale may      advantages of working cooperatively with        wheels and tube wells- but
    be ineffective for   other families and villages to reduce           cannot cope with increased
    longer term
    economic growth
                         desertification and pollution of ground water   demand and increased droughts
                         by since aquifers are shared-if an unseen
                         resource! (see photgraph)
Hard and soft management
    How to meet the challenge of the need for more water?

Traditional ‘hard’ engineering
                                                                   Softer more environmentally and
•  Dams; currently 845000 of which 5000 classed as
                                                                       ethically responsible
   megadams. The aim is to increase natural storage
   capacity by artificial reservoirs. Rivers most at risk at           approaches
   present: Yangtze, Amazon, Danube and many in the                •    Water conservation eg targeted drip
   Himalayas                                                             irrigation on plants in Ethiopia,
• Channels, seen in most arid/semi arid countries                       includes water harvesting
   whatever their economic status, eg Jonglei Canal on             •    Water restoration eg Northern Aral
   Nile                                                                 Sea, and on smaller scale river
• Pipelines eg Australia and California Aqueduct and                    Colne in UK
   snowy Mountains scheme Australia                                •    Integrated drainage basin
• Desalination plants eg in Middle East                                 management , especially if bottom
                                                                        up and community involved.
• Recharging schemes for depleted aquifers, eg North
   London Artificial recharge Scheme and Long Island New           •    The 4 Rs: ie an attitudinal fix:
   York                                                                 Reduce, Respect, Reuse, Renew.....
 Newer hard technologies
•Tankers to transport water eg turkey to israel                Specific Technologies seen as
•Osmosis membranes filtering salt from                         appropriate /intermediate with less
brackish water eg Israel (the Ashkelon plant                   negative externalities
                                                               •Water harvesting of grey water eg Belize
produces 15% of domestic demand). Also in                      •Micro dams serving villages eg Nepal
California, Spain and China                                    •Water meters to reduce use eg UK
•Fertigation: fertilser and water drip feeding of              •Composting latrines – seen in National Trust
                                                               properties in UK to Mumbai slums!
crops, as in Israel
Water Conflicts overview
   Water Resources
  •    Water like energy is a fundamental need but not      Water Conflict
       evenly distributed                                   •   Potential conflicts=high both local & international
  •    Factors influencing geography of supply:             •   Resource use often exceeds recharge capacity
      Physical-surface, groundwater, desalinisation            leading to long term degradation
      Human: demand, management, mismanagement             •   Future is in doubt because of unsustainable use+
  •    Increasing demand not matched by supply= WATER           climate change
       GAP                                                  •   Vulnerable populations most at risk
  •    Implications for human well being- which is why it   •   Management strategies to ensure supply require
       is named in the MDGs                                     cooperation of many different players = changes in
  •    Demand from various users                                way water is valued & used
  •    Water resources are often transboundary




Water Futures
Water stress and scarcity are projected to increase
because:                                                Therefore, there are alternative futures –
•Climate change will make some areas more arid          It all depends on the decisions the players make....
and rainfall more unreliable
•Glacial water sources will reduce due to climate
change                                                  and climate change, population trends, energy
•Unsustainable use of some supplies will decrease       security, superpower politics, bridging the
their quality and quantity
•Demand will rise due to population and economic
                                                        development gap etc…
growth
•Water wars will lead to winners and losers in water
supply
                                                                                       22
Synopticity-Water-Energy
• Energy and Water: Solving Both Crises Together:
• Water and energy are the two most fundamental ingredients of modern
  civilization
• We consume massive quantities of water to generate energy, and we
  consume massive quantities of energy to deliver clean water
• Peak Oil is topical. Peak Water or ‘Blue Gold’ is less thought about.
  There are tensions between the two:
        water restrictions                       energy problems,
        are hampering                            particularly rising
        solutions for                            prices, are curtailing
        generating more                          efforts to supply
        energy                                   more clean water.

• An issue in energy rich states ,which are semi arid/arid: to sell cheap
  oil or keep to power desalinisation plants
• Water is needed to generate energy. Energy is needed to deliver
  water. Both resources are limiting the other—and both may be running
  short. Is there a way out?

                                                            23

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Unit 3 contested_planet_water_conflicts

  • 1. 6GEO3 Unit 3 Contested Planet Topic 2 Water Conflicts
  • 2. What is this topic about? • Water Conflicts is the second of the ‘resources’ topics • It examines the range of conflicts associated with the supply and demand patterns of the fundamental resource of water. • Water supplies and quality vary globally, and actual and potential conflicts arise from the gap between growing demands and diminishing supplies. Mega technological fixes for mega problems • There are also growing (Hoover Dam, USA) versus Low tech pressures resulting from solutions (Taanka storage of India) climate change
  • 3. CONTENTS 1.The geography of water supply 2. The risks of water insecurity 3. Water conflicts and the future Click on the information icon to jump to that section. Click on the home button to return to this contents page
  • 4. 2. The risks of water insecurity • What are the potential implications of an increasingly ‘water insecure’ world? Water conflicts Water supply problems Where demand exceeds supply Increasing water shortages and no effective management may be more important operates, then there will be than energy shortages- conflicts between the various because there is no players involved alternative! Water geopolitics The conflicts between nation states, despite the international agreement called the Helsinki Rules designed to create more equitable use of water extending across boundaries Water transfers Of this precious resource by either diverting the actual river, or using canals . Long carried out at a small scale but increasingly over larger distances, and even transboundary
  • 5. 1.The geography of water supply and demand Climate •Climatic zones are critical in determining water •River systems availability transport this •Equatorial / tropical areas have higher rainfall than water, often at temperate / arctic areas. Physical continental scale. •High altitude areas have snowpack water reserves released in late spring. influences •Flows increase downstream as •Monsoon areas have one main peak, equatorial areas on water supply tributaries enter. two peaks. and scarcity •Seasonal changes • Some tropical areas experience recurring drought in temperature can create distinctive river regimes. •The relationship between water inputs and outputs is water balance 97.2% Geology Ocean & •Surface drainage occurs on saltwater rocks which are impermeable such as granite and clay. •Permeable rocks like limestone, chalk and some sandstones store water, called aquifers.
  • 6. Human influences on water supply and scarcity • Humans affect the hydrological cycle at • Blue water flow is the visible part of the hydrological system: surface flows many points of flows and storage: and then recharging aquifers • Green water flow is water intercepted, stores and released by vegetation by evaporation and transpiration • Grey water is polluted water Supply can be from:  Surface sources  groundwater sources  In the UK 2/3 of supply is from surface and 1/3 from groundwater, with regional variations. • Freshwater is effectively a finite resource since only about 1% of freshwater is easily available for human use. • The water footprint indicates how much is required by consumers- and in an increasingly globalised world, the footprint of someone in a country like the UK will not be just local as so many products using water will have been produced elsewhere!
  • 7. Some key definitions low level of water • measured by annual renewable flows (in cubic metres) per head of Water shortage supply relative to basic population, or the number of people dependent on each unit of water needs. Water often taken as less than •growing conflict between users and competition for water stress 1700m3 per person per • declining standards of reliability and service year • harvest failures and food insecurity. Water supply of water per •an imbalance of supply and demand Domestic scarcity person falls below •a high rate of use compared to available supply, especially if the 1000m3/year remaining supply is difficult or costly to tap. Physical reached when 60% of Physical water scarcity is shown by: water river flows are diverted • Severe environmental degradation for agricultural, •Declining groundwater and water allocation which favours some groups scarcity industrial & municipal over others. purposes; globally over •Arid and semi-arid areas are most at risk 75% is now used Economic when less than 25% of This is often due to political reasons and conflict: easiest to solve by low water rivers are used, and technology solutions: small dams, water harvesting from roof tops etc. It is there is abundant targeted by NGOs like Water Aid scarcity supply potential: water does not reach the poorest people
  • 8. Water scarcity hotspots According to the International Water Management Institute environmental research organisation global water stress is increasing, and 1/3 rd of all people Aral Sea faces environmental face some sort of water scarcity. Agricultural uses catastrophe, although recent attempts dominate in the growing need for food. to reduce impacts of river diversions for especially cotton production Severe water scarcity N China, Egypt imports > 50% of its food because leading to South North transfer of physical scarcity scheme-see later slide R Ganges: physical stress from Ogallala aquifer pollution and over abstraction provides 1/3 all US irrigation water, but is seriously depleted: the water table is dropping by about 1m/yr. Australia; diversion ¼ As a ‘fossil’ reserve, of all water away formed probably from from Murray Darling past glacial meltwater Basin for agriculture flows, it is effectively a Much of sub Saharan Africa suffers finite resource from economic scarcity from especially poverty but also lack of infrastructural development . Some 1 bn people involved1 Little/no water scarcity Physical water scarcity- not necessarily dry areas but those where over 75% river flows are used by agriculture, industry or domestic consumers Economic water scarcity- less than 25% rivers used, and abundant supply potential but not reaching the poorest people . Approaching physical water scarcity – More than 60% river flows allocated, and in the near future these river basins will have physical scarcity
  • 9. Water conflicts Population growth Consumer demand Reductions because of: Industrial growth •Users abstracting/polluting Agricultural demand upstream •Deteriorating quality •Impact of climate change DEMANDS? SUPPLY? Rising Diminishing PRESSURE POINT- ie need for management. This is shown spatially as a ‘hotspot’ of conflict, see map on next slide. DIFFERENT Pressure and hence USERS? tension and conflict may be over surface flow Conflicting and/or groundwater demands supplies Dams and diversions and loss of wetlands are particularly contested. •International conflicts i.e. basin crosses national boundaries •Internal conflicts ie within a country •Conservation versus exploitation
  • 10. Present and potential water conflict hotspots • As water supply decreases, tensions will increase as different players try to access common water supplies • Many conflicts are transboundary in nature, either between states or countries River basins currently in dispute River basins at risk in the future Tigris-Euphrates Iraq + Syria concerns that Turkey’s GAP project will divert Large International drainage basins their water Ob Colorado: disputes between the 7 US states and Mexico it The Aral Sea, an flows through. The inland drainage basin, river is so overused, once the world’s 4th that it no longer largest inland lake has reaches the sea!. shrunk sine the 1950s 90% abstracted Lake Mekong after the 2 rivers before reaches Chad feeding it: the Amu Mexico Dayra and Syr Darya Ganges were diverted for irrigation. By 2007 the sea was Okavango Zambezi 10% of original volume and split into 2 lakes. La Plata Insert Figure 2.11 page 47 Orange The ex soviet states are in conflict: Note: although there have been rising tensions Uzbekistan , globally, many areas demonstrate effective Nile hotly disputed between Ethiopia and Turkmenistan and management to diffuse the situation and create Kazakstan. Sudan ,who control its more equitable and sustainable demand-supply headwaters, and Egypt . balance, such as the Mekong River Committee,& the Nile River Initiative
  • 11. Hydropolitics and geopolitics Political negotiations centred on conflicts over the shared use of water sources History of hydropolitics in •The Nile is the world’s longest river , 6,500kms, Nile Basin 2.9km2 catchment,10% of Africa, running through •tensions due to the 10 countries with 360 million people depending dominance of Egypt on it for survival. • civil wars in Sudan •Growing issues of desertification & salination and Ethiopia increased evaporation linked to climate change • tensions from Egypt’s •About 85 % water originates from Eritrea and treaties dating back to the Ethiopia, but 94 % is used by Sudan and Egypt. 1929 and 1959 Nile Water Agreements. • Upstream states Evidence of more effective co-operation increasingly challenging • The Nile Basin Initiative, system of Egypt’s dominance. cooperative management which started •Ethiopia wants to use the late 1990s Nile River for HEP plants • All countries except Eritrea working with and industrial development. The World Bank and bi-lateral aid donors . • Community level involvement . • Managers visited Colorado River recently to see how effectively the 1922 River Tech Fix ; Water Compact and its ‘law of the river’ The megaprojects of works dams like Aswan are famous. • 1996 Helsinki Rules on the Uses of the Latest high tech is the Waters of International Rivers - 1990sproject called regulating how transboundary rivers and ‘Tecconile’ a joint GIS groundwater are managed system to help monitor • The Nile Basin is an example that ‘Water and plan the basin Wars’ may be averted
  • 12. Water transfers- a quick fix? Source area Receiving area Examples of existing schemes Proposed schemes International National: International National: Lesotho to South Africa: Snowy Mountains-Australia Turkey to Israel undersea South-North transfer- China Lesotho Highlands Water Melamchi Nepal pipelines Ebro -Spain Project Tagus-Mercia Spain Austrian Alps to Spain + Ob to the Aral Sea Turkey to Israel by tanker Greece by pipeline NAWAPA Alaska to California
  • 13. Mega Tech Fixes: China’s South–North water transfer One of the Demand from industrial centres, high population density and intensive agriculture. Low rainfall and over abstracted groundwater: physical scarcity largest water transfers Central routes globally. 1267 km diversion. May Beijing Aim: to divert Externalities Western have to use some water 45bn m3/year •Industrial growth Routes from 3 Gorges reservoir Tianjin from the along routeways Work starts to help water surplus will exacerbate 2010, at Eastern river basins of existing pollution high Yellow Route the S and E altitude, River to the water problems 1,155km •Changes in water very long deficit areas balances: difficult diversion of the North, reduced water in 500kms at 3- especially Yangtze means 5000m Beijing and CHINA Shanghai less dilution and above sea Tianjin more pollution level • Displaced people especially Yangtze River from Dang Jiang Kou dam ...... 0 mls 250 South China Originally planned 1952, started 2002 ,due to finish 2050. Chief player: Sea Government sponsored ‘South to North Water Transfer Project Company, with each province having a local water company. Involves huge civil engineering works, 3 major canals, pipelines, tunnels, pumping stations
  • 14. Water issues in the Middle East In the Northern region: Turkey is in The Aral Sea, on the boundary of the Middle East • There are dispute with Syria and Asia is suffering from over abstraction and significant and Iraq over pollution disputes over access to water damming more of the already in this area Tigris and Euphrates river • The combination of a growing population and low In the Western seasonal rainfall Region: Israelis, are the main Syrians, causes. Jordanians and • Is the energy Lebanese are all in dependent dispute over technological fix of shrinking water desalination the supplies answer? A contributory • Photo of a plant in factor to the 1967 Dubai Arab-Israeli war Water storage is in 3 huge aquifers under the Israeli mountains and coastal strip and the R Jordan
  • 15. 3. Water conflicts and the future What are the possible conflicts and solutions to increasing demands for water? This section looks at 4 themes, and the table below summarises three scenarios for the future 1. Trends in water demand globally and locally 2. Water players 3. Responses to need to increasing water supply and the issues these strategies raise 4. The role of technology in water supply Business as The cost of water will increase usual Water consumption will increase resulting in declining stores Food transfers will mitigate shortage of water in areas where agriculture declines Water Crisis Demand will outstrip supply The proportion of the world’s population without access to clean water will increase Food insecurity and migration will increase Conflicts of water supplies (intra and inter state) become more likely Sustainable Agricultural and household water prices will double in the developed world and Water triple in the developing world Global water consumption will fall, although the gap between per capita use will close Green water flows will increase Improvements in water harvesting and farming techniques allow food yields to increase whilst water consumption declines From: 2002 International Food Policy and Research Institute future models
  • 16. World Water Days- trying to be more sustainable? • The importance of water in managing global issues is Previous Themes for World Water shown by the profile given to it by the UN: Days • It declared 2005 to 2015 as the International Decade for • 2009 Transboundary water Action, "Water for Life”. • 2008 Sanitation • Every year on March 22nd the UN gives a theme to • 2007 Coping with water publicise current issues. 2010 World Water Day: scarcity dedicated to the theme of water quality. • 2006 Water and Culture • Such global action is rooted in the iconic Earth Summit • 2005 Water for Life on Environment and Development (UNCED) in Rio de • 2004: Water and Disasters Janeiro in 1992, and the creation of Agenda21 (the • 2003: Water for the Future Blueprint for planet management at global scale)and • 2002: Water for Development Local Agenda 21( global problems, local action) • 2001: Water and Health UN MDG TARGET set in 2000: Halve, by 2015, the proportion of the population without sustainable access to safe drinking water and basic sanitation. The world is ahead of schedule in meeting the 2015 drinking water target. Yet a number of countries face an ‘uphill battle’: 884 million people still rely on unimproved water sources for their drinking, cooking, bathing and other domestic activities. Of these, almost 85 % (746 million people) live in rural areas. 1990 to 2006, 1.1 billion people in the developing world received access to toilets, latrines and other forms of improved sanitation. But this leaves 1.4 billion people still needing such facilities if the 2015 target is to be met.
  • 17. Water Players and decision makers • Different players have conflicting views on water insecurity • One player may have quite complex views; most Governments will have departments wanting conservation as opposed to development • You need to identify the ‘stakeholders’ in any particular case study, and then the role of the ‘gatekeepers’ who wield power. The next slide shows a classification of players Political: water is a human need Economic •International •International: organisations e.g. World Bank & IMF UN •TNCs and •Government developers •Regional & local •Businesses and councils users •Lobbyists & pressure groups Photograph of Aral Sea with grounded tanker Social: water is a human right Environmental •Individuals •Conservationists •Residents •Scientists & •Consumers land owners, planners health officials, NGOs like Water Aid
  • 18. Classifying the water players Political Economic Social Environmental Global World Bank funds megaprojects to improve supply. Has become more environmentally conscious. This group also has businesses and TNCs UN Millenium Development Goal called The Water Target:"Halve, by 2015, the proportion of people without sustainable access to safe drinking water and basic sanitation " World Health Organisation G8 Summits : 2002 Evian action Plan, focus on The role of NGOs WWF and water, and 2009 L’Aquila summit increased aid to such as Water Aid Friends of the poorer countries to help MDGs, + highlighted need or GLOWS has been Earth campaign for for more integrated management crucial in managing full Environmental water supplies Impact Assessments Countries such as of major projects National Government owned water TNCs (Viendi and India, have likely to damage companies, eg China Suez RWE which mounted successful the environment owns Thames massive This group will Water, American community-led include many Local Water Works campaigns on things scientists and Companies like elimination of researchers providing open defecation At a local scale technological fixes Government NIMBY groups will Health Agencies campaign from national to local scale Individual 6.9 billion consumers
  • 19. Responses: Management strategies • Water conflicts can be managed in a range of different ways • There is a spectrum of different management strategies • Some are sustainable as they balance ecological and human needs Strategies rely on technology? What is Present Obstacles to sustainable Future policies? Sustainability? policies management Longer term? Millennium Driven by •Climate change uncertainty and Need more Ecosystem short term effects research, Assessment economic + •Natural variability of water information and definition: political •Pressures caused by human monitoring A characteristic or concerns activities and rapid growth of especially on state whereby the Often do not transition economies towards a aquifers in needs of the present include consumerist society developing and local population science and •Increased water demands countries can be met without effective •Gross inefficiencies in use More compromising the technology •Poor existing quality of supply partnerships? ability of future across huge areas of world More community generations or •Funding involvement? populations in other •Access to appropriate technology More locations to meet accountable? their needs.
  • 20. Low tech solutions to water : a case study The problem: The River WAKAL area of Rajasthan in NW India is one of • Water the driest and poorest areas in India. Subsistence agriculture dominates. management 96% of rainfall is from the 3-4 month monsoon (late June through often focuses on September.) and the traditional methods of using groundwater and large scale, technologically conserving surface water are falling short of demands advanced mega- A solution? Basic technology and projects information is channelled through the NGO: • These often have GLOWS( global water for sustainability complex costs and project) a partnership between World Vision benefits India and Florida International University. • Water Methods: conservation and 1. Increasing simple low tech appropriate restoration of and intermediate solutions to increase supply have a role storage: •Increased rainwater harvesting • Small scale, •Improved storage system at a family scale: bottom-up Taankas: 3 m in diameter , 3-4 m deep, schemes are most below land level with a side opening to likely to be allow surface flow in. They store about important in the 20,000litres, and once full provide water for Changes: Traditional low tech developing world methods of water conservation.: a family until next monsoon. • However, unless duplicated on 2. Using colourful drama performed by stone dams, Persian water trained locals to villagers to illustrate the large scale may advantages of working cooperatively with wheels and tube wells- but be ineffective for other families and villages to reduce cannot cope with increased longer term economic growth desertification and pollution of ground water demand and increased droughts by since aquifers are shared-if an unseen resource! (see photgraph)
  • 21. Hard and soft management How to meet the challenge of the need for more water? Traditional ‘hard’ engineering Softer more environmentally and • Dams; currently 845000 of which 5000 classed as ethically responsible megadams. The aim is to increase natural storage capacity by artificial reservoirs. Rivers most at risk at approaches present: Yangtze, Amazon, Danube and many in the • Water conservation eg targeted drip Himalayas irrigation on plants in Ethiopia, • Channels, seen in most arid/semi arid countries includes water harvesting whatever their economic status, eg Jonglei Canal on • Water restoration eg Northern Aral Nile Sea, and on smaller scale river • Pipelines eg Australia and California Aqueduct and Colne in UK snowy Mountains scheme Australia • Integrated drainage basin • Desalination plants eg in Middle East management , especially if bottom up and community involved. • Recharging schemes for depleted aquifers, eg North London Artificial recharge Scheme and Long Island New • The 4 Rs: ie an attitudinal fix: York Reduce, Respect, Reuse, Renew..... Newer hard technologies •Tankers to transport water eg turkey to israel Specific Technologies seen as •Osmosis membranes filtering salt from appropriate /intermediate with less brackish water eg Israel (the Ashkelon plant negative externalities •Water harvesting of grey water eg Belize produces 15% of domestic demand). Also in •Micro dams serving villages eg Nepal California, Spain and China •Water meters to reduce use eg UK •Fertigation: fertilser and water drip feeding of •Composting latrines – seen in National Trust properties in UK to Mumbai slums! crops, as in Israel
  • 22. Water Conflicts overview Water Resources • Water like energy is a fundamental need but not Water Conflict evenly distributed • Potential conflicts=high both local & international • Factors influencing geography of supply: • Resource use often exceeds recharge capacity  Physical-surface, groundwater, desalinisation leading to long term degradation  Human: demand, management, mismanagement • Future is in doubt because of unsustainable use+ • Increasing demand not matched by supply= WATER climate change GAP • Vulnerable populations most at risk • Implications for human well being- which is why it • Management strategies to ensure supply require is named in the MDGs cooperation of many different players = changes in • Demand from various users way water is valued & used • Water resources are often transboundary Water Futures Water stress and scarcity are projected to increase because: Therefore, there are alternative futures – •Climate change will make some areas more arid It all depends on the decisions the players make.... and rainfall more unreliable •Glacial water sources will reduce due to climate change and climate change, population trends, energy •Unsustainable use of some supplies will decrease security, superpower politics, bridging the their quality and quantity •Demand will rise due to population and economic development gap etc… growth •Water wars will lead to winners and losers in water supply 22
  • 23. Synopticity-Water-Energy • Energy and Water: Solving Both Crises Together: • Water and energy are the two most fundamental ingredients of modern civilization • We consume massive quantities of water to generate energy, and we consume massive quantities of energy to deliver clean water • Peak Oil is topical. Peak Water or ‘Blue Gold’ is less thought about. There are tensions between the two: water restrictions energy problems, are hampering particularly rising solutions for prices, are curtailing generating more efforts to supply energy more clean water. • An issue in energy rich states ,which are semi arid/arid: to sell cheap oil or keep to power desalinisation plants • Water is needed to generate energy. Energy is needed to deliver water. Both resources are limiting the other—and both may be running short. Is there a way out? 23