Sunday, March 13, 2011

Ice Sheets Shrinking More Quickly

Greenland and Antarctica’s ice sheets are shrinking more quickly, suggesting United Nations

projections for sea-level rise are too conservative, a U.S. National Aeronautics and Space Administration-funded study said.

From 1992 to 2009, the two regions lost on average 36.3 billion tons more ice every year than the previous year, scientists led by Eric Rignot at NASA’s Jet Propulsion Laboratory in Pasadena, California, said in a study in the Geophysical Research Letters journal. The researchers said they

linked two independent sets of measurements to validate them.

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