Global Warming

United States
March 11, 2007 1:24am CST
This is a hot topic...What are your opinions on global warming. Do you think like some politician that it's a fraud...or do you think the world is really having a problem with global warming.
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1 response
simran1430
@simran1430 (1790)
• India
11 Mar 07
Solar radiation at top of atmosphere and at Earth's surface.The visible solar radiation heats the surface, not the atmosphere, whereas most of the infrared radiation escaping to space is emitted from the upper atmosphere, not the surface. The infrared photons emitted by the surface are mostly absorbed by the atmosphere and do not escape directly to space.