The Greenland ice sheet has lost 20 per cent more ice than scientists previously thought, posing potential problems for ocean circulation patterns and sea levels, a study has found.
Researchers had previously estimated that the Greenland ice sheet lost about 5000 gigatons of ice in recent decades, enough to cover the US state of Texas in a sheet almost 8 metres high. The new estimate adds 1000 gigatons to that period.
