National Public Radio: In July, the surface of Greenland's ice sheet melted at an unusually fast rate. In the span of four days, an estimated 97 percent of the ice disappeared. Audie Cornish talks to NASA scientist Tom Wagner for more.
URL: http://www.npr.org/2012/07/25/157382548/greenland-ice-sheet-melts-at-abnormal-blazing-speed?ft=1&f=1025
Enclosure: http://www.npr.org/player/v2/mediaPlayer.html?action=1&t=1&islist=false&id=157382548&m=157382533
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