Greenland melt ‘speeding up’

The meltdown of Greenland’s ice sheet is speeding up, satellite measurements show.

Data from a US space agency (Nasa) satellite show that the melting rate has accelerated since 2004.

If the ice cap were to completely disappear, global sea levels would rise by 6.5m (21 feet).

Most of the ice is being lost from eastern Greenland, a US team writes in Science journal.

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