Iña

1. Climate Change
PART I
Malena and Iñaki
Instituto Santa Cruz
Buenos Aires - Argentina

2. Climate and Weather
WEATHER: the state CLIMATE: the
of the air at a average, or typical,
particular place weather conditions
and time;, for observed over a
example, whether long period of time
it´s warm or cold. for a given area.

3. World’s Climate
It has been getting warmer
since 1900. However, this
has not occurred evenly
across the world’s surface .

4. (The violet parts are the less-
affected zones)

5. What Causes Climate Change?
The most important natural causes are :
• Volcanic Events
• Ocean Currents
• Comets
• The Sun
• The Greenhouse Effect
Any unusual thing that happens on Earth has its global
impact, but in the end, everything influences the climate
in one way or another.

6. What is “the greenhouse
effeCt”?
• A process by which thermal radiation from
a planetary surface is absorbed by
atmospheric greenhouse gases.
• The heat caused by infra red radiation is
absorbed by "greenhouse gases" such as
water vapour, carbon dioxide, ozone and
methane, which slows its escape from the
atmosphere.