Apposed to the horrible and cold winter weather that we are experiencing, Greenland is suffering the wrath of heat waves. Last winter people in the eastern people associated the cold with the behavior of the polar vortex. But the polar vortex can show two faces, a cold one or a warm one depending where. In 1889 and 2012 we saw a record breaking summer melts that liquefied nearly all of Greenland's icy surface. The reason for the large part of the melting in 2012 was warm air and thin clouds insulating the island like a blanket.
http://news.yahoo.com/polar-vortex-revenge-us-heat-waves-melted-greenlands-132445947.html
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