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Greenland’s permanent ice-cap is melting at half the speed previously predicted, according to new research by the Delft Technical University in the Netherlands and the US Jet Propulsion Laboratory.
The researchers say that previous conventional estimates have suggested that the Greenland ice-cap is melting at the rate of some 230 gigatonnes each year, which would result in an average rise in global sea levels of some 0.75 mm per year.
