Ice melt found across 97 percent of Greenland, satellites show
Three satellites found that 97 percent of Greenland -- the land mass second only to Antarctica for its volume of ice -- underwent a thaw never before seen in 33 years of satellite tracking, NASA reported Tuesday.
Satellite experts at first didn't trust their readings, especially since they showed an incredible acceleration. Over four days, Greenland's ice sheet -- which covers 683,000 square miles -- went from 40 percent in thaw to nearly entirely in thaw.
"This was so extraordinary that at first I questioned the result: Was this real or was it due to a data error?" Son Nghiem of NASA's Jet Propulsion Lab in Pasadena, Calif., said in NASA's statement about the findings.
Scientists on the ground in Greenland had been reporting an unusually warm summer thaw, including damage at a snow airfield and strong runoff threatening a bridge, Tom Wagner, who manages NASA's ice research programs, told NBC News.
http://worldnews.nbcnews.com/_news/2012/07/24/12927340-ice-melt-found-across-97-percent-of-greenland-satellites-show?lite
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We're talking serious ocean level increases with this. It will take a while, but apparently not as long as was earlier forecasts indicated.
Tipping points anybody?
R&K
Got to be something quite substantial for a change like that in 4 days. 
the feedback will be lakes forming until cracks open in the areas surrounding glaciers. The water flooding down to the bottom acts like WD40 causing accelerated slip.
