Staff left gallons of fuel and an unknown amount of low-level radioactive coolant there when the base shut down in 1967 on the assumption it would be entombed forever, according to the university.
It is all currently about 35 meters (114.83 ft) down. But the part of the ice sheet covering the camp could start to melt by the end of the century on current trends, the scientists added.
"Climate change could remobilise the abandoned hazardous waste believed to be buried forever beneath the Greenland ice sheet," the university said of findings published this week in the journal Geophysical Research Letters.
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