12 Mar '12, 4am

Greenland's Ice Sheet May Melt Off Sooner Than Expected

Greenland's Ice Sheet May Melt Off Sooner Than Expected

Greenland is home to one of the world's largest and most vital sources of land-based ice cover, long considered at a heightened risk from the melting effects of global warming -- but a new report is revealing that the threat of melt off may be even more alarming. According to a new report published in Nature Climate Change , the breaking-point for Greenland's ice is a bit closer at hand. Scientists say that even a relatively minor increase in global temps of 1.6 degrees Celsius may render the ice sheet melt off 'irreversible'. It was previously estimated that this grim reality would only come about with a rise of 3.1 degrees. To make matters worse, reaching this breaking point may not be far off. “We might already be approaching the critical threshold,” says the report's lead-author Alexander Robinson, via Bloomberg. “The more we exceed the threshold, the faster it melts.”...

Full article: http://www.treehugger.com/climate-change/greenlands-ice-c...

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