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As summer sizzles, take a visual cooling break and discover the wonders of the icy Arctic. Pictured: The glacier Sermeq Avangnardleq, located in west Greenland, was a smooth sheet until 1999. Rising summer air temperatures are driving the glacier toward the ocean, leaving its surface heavily crevassed.
The Greenland Climate Network, a series of automated weather stations, monitors conditions on the ice sheet.Image credit: Konrad Steffen, CIRES, University of Colorado
