Greenland's growing deltas: Combining historical and modern imagery to decode change in a telltale Arctic landscape

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Greenland’s 1.7-million-squarekilometer ice sheet is shrinking. But how much meltwater and sediment drains from the ice sheet through rivers? Researchers are studying the island’s deltas to find out, and are getting help from some longforgotten aerial photos taken by the Danish Air Force in the 1930s.

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