Monday, 16 March 2009

what is Global Warming


Global warming is the rise in temperature of the earth's atmosphere. The earth is naturally warmed by rays from the sun which pass through the earth's atmosphere and are reflected back out to space again.
The global warming is nutural. However, if extra greenhouse gases are made, the thermal blanket gets thicker and too much heat is kept in the earth's atmosphere. That's when global warming is bad, Carbon dioxide, methane, nitrous oxide, water vapour, ozone and chlorofluorocarbons are all natural gases, but extra greenhouses gases can be made by humans from pollution. In addition, global sea levels could rise by more than 20 feet with the loss of shelf ice in Greenland and Antarctica, destoying coastal areas worldwide.
Nowadays, there are many agencies which consider solving this big problem. global warming can aeffect everybody who lives in the world.

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