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Sunday, December 08, 2002The northernmost reaches of the Earth are warming, reducing the sea ice across the Arctic Ocean, melting the ice sheet in Greenland and spreading shrubs into the Alaskan tundra, scientists said Saturday. Taken individually, the changes only suggest the region's climate is undergoing a warming trend. Together, they provide dramatic evidence the change is real, a panel of scientists said during at a meeting of the American Geophysical Union. "If you look at all the data sets together, they do provide compelling evidence something is changing over a great area," said Larry Hinzman, of the University of Alaska, Fairbanks. Natural variability may be behind the changes, but human activity might also be to blame, scientists said. Why is it that no one ever blames those submarine volcanoes under the polar icecaps? They produce enough heat to support life on the Arctic ocean floor, might they not also melt the ice? posted by Sydney on 12/08/2002 08:16:00 AM 0 comments 0 Comments: |
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