Saturday, March 27, 2010

PDF on Global Warming

Global warming is the increase in the average temperature of Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Global surface temperature increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) between the start and the end of the 20th century.

PDF on Global Warming Can be Found on

http://filedigg.com/fileSearch?q=PDF+on+Global+Warming&view_type=singleview&site=site&page=1&as_filetype=web

http://pdfsearchengine.in/pdfsearchengine?q=PDF+on+Global+Warming&page=1

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