Greenland's glaciers losing ice at faster rate - Science - MSNBC.com

"Satellite observations indicate that Greenland's glaciers have been dumping ice into the Atlantic Ocean at a rate that's doubled over the past five years, researchers reported here on Thursday. The findings add yet another factor to the long-running debate over the effect of climate change on the world's ice sheets and sea levels.

'The evolution of the ice sheet, in the context of climate warming, is more rapid than has been predicted by models,' one of the researchers, Eric Rignot of NASA's Jet Propulsion Laboratory, told MSNBC.com. As a result, Greenland's ice sheet -- second only to Antarctica's ice sheet, with almost as much area as Mexico -- could contribute more than expected to rising sea levels in a warming world, he said."