JACOBSHAVN ISFJORD -- U.S. Coast Guard Cutter Alder transits past an iceberg field located above the Arctic Circle, while steaming south along Greenland's western coast, August 22, 2010. Alder is underway as part of Operation Nanook, one of three major operations conducted per year in the Canadian Arctic, designed to demonstrate international cooperation and expand the international ability to respond to emergencies in the Arctic. (U.S. Coast Guard photo by Petty Officer 3rd Class George Degener).
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