Greenland glaciers found to be melting on fast track

Environmental News Network: Greenland's glaciers are retreating quickly, and a new study shows in historical terms just how quickly: over the past century, at least twice as fast as any other time in the past 9,500 years. The study also provides new evidence for just how sensitive glaciers are to temperature, showing that they responded to past abrupt cooling and warming periods, some of which might have lasted only decades. To track how glaciers grew and shrank over time, the scientists extracted sediment cores from a glacier-fed......

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