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Warmer air is only part of the story when it comes to Greenland's rapidly melting ice sheet. New research highlights the role ocean circulation plays in transporting heat to glaciers. Greenland's ice sheet has lost mass at an accelerated rate over the last decade, dumping more ice and fresh water into the ocean. A research team has discovered warm, subtropical waters deep inside Sermilik Fjord at the base of Helheim Glacier. [Source: Woods Hole Oceanographic Institute]
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