National Geographic News, Reporting Your World Daily

Tuesday, November 10, 2009

Photo: One Degree of Warming Having Major Impact, Study Finds


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Global surface temperatures for 2005 compared to the mean from 1951 to 1980 showed that it was the hottest year on record.

Now exhaustive analysis of data from about 30,000 physical and ecological systems finds that human-induced warming is already having a dramatic effect on the planet.

Image courtesy NASA Goddard Institute for Space Studies