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Greenland's massive ice sheet may have melted by a record amount this year, scientists have warned. Rising global temperatures constitute a "death sentence" for Greenland as we know it, according to a scientist from the Geological Survey of Denmark. (Photo/IC)
An aerial view of the study area on the Greenland ice sheet. (Photo/IC)
An aerial view of the study area on the Greenland ice sheet. (Photo/IC)
