Nature can, selectively, buffer human-caused global warming, say scientists

Nature can, selectively, buffer human-caused global warming, say scientists

Natural processes can selectively buffer the full brunt of global warming caused by greenhouse gas emissions, according to researchers from the Hebrew Univeristy at Jerusalem and John Hopkins University. The researchers found that the causes of changes in temperatures and water vapor in the tropical tropopause layer (TTL). The TTL is a critical region in the atmosphere with characteristics of the troposphere and stratosphere. Israeli and U.S. scientists used satellite observations and output to understand temperature trends in the TLL. The observations have shown that warming of the tropical Indian Ocean and tropical Western Pacific Ocean,with resulting increased precipitation and water vapor causes the opposite effect of cooling in the TTL region above the warming sea surface. Since water vapor is a strong greenhouse gas this effect leads to a decrease in temperature.

Ethan Becker

http://www.sciencedaily.com/releases/2014/02/140202111055.htm

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