Tuesday, July 29, 2008

Global Warming.........

Global warming is the increase in the average measured temperature of the Earth's near-surface air and oceans. global warming causes by greenhouse gases in atmosphere, the effects of forcing agents on the climate are complicated by various feedback processes and solar variation..

Although it is difficult to connect specific weather events to global warming, an increase in global temperatures may in turn cause broader changes, including glacial retreat, Arctic shrinkage, and worldwide sea level rise.

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