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Warming and melting on top of the Greenland ice sheet
On top of the approximately 3 km thick ice sheet in Greenland the temperature is normally around minus 10-15 degrees C in the summer and about minus 60 degrees in the winter. This year, researchers from the Niels Bohr Institute observed temperatures above zero and a significant warming and melting of the upper 1 1/2 meter layer of snow at the NEEM ice core drilling project in northwestern Greenland.