FILE- In this July 26, 2011 photo, a melting iceberg floats along a fjord leading away from the edge of the Greenland ice sheet near Nuuk, Greenland. Massive ice sheets in western Antarctica and Greenland are melting much faster than scientists figured a quarter century ago. Greenland has lost more than 5 trillion tons since 1992. International talks to fight global warming are set to start in Poland next week. (AP Photo/Brennan Linsley, File)
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