24 Oct '11, 6pm

Greenland Ice Sheet Melting Not Stopped By New Snowfall - Ties For Record Ice Loss

Greenland Ice Sheet Melting Not Stopped By New Snowfall - Ties For Record Ice Loss

CCNY's data found that melting of the Greenland Ice Sheet in 2011 was the third greatest since 1979, with only 2010 and 2007 showing more melting. Overall, June to August 2011 saw melting which was "well above" average for 1979-2010. In terms of the amount of snow gained versus melted over the past year, the mass balance, 2011's melting tied the record set in 2010. As for why this is happening, the research shows that temperature and albedo led the way: "Albedo" describes the amount of solar energy absorbed by the surface... A white blanket of snow reflects much of the sun's energy and thus has a high albedo. Bare ice, being darker and absorbing more light and energy, has a lower albedo. [...] Absorbing more energy from the sun also means that darker patches warm up faster, just like the blacktop of a road in the summer. The more they warm, the faster they melt. [...] A ye...

Full article: http://www.treehugger.com/files/2011/10/greenland-ice-she...

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