A sediment core from Greenland shows that even if the planet does not get any warmer than it is now, ice loss from Greenland alone would add at least 1.5 metres to the global average sea level and possibly as much as 5 metres.
much of the ice disappeared
The findings show that even if the planet doesn’t get any warmer than it is now, ice loss from Greenland alone would add at least 1.5 metres to the global average sea level and possibly. This is in line with existing projections, but the study provides direct evidence to back them up. His team used a technique called luminescence dating to show that the sediment was last exposed to sunlight around 416,000 years ago during an interglacial period known in Britain as the Hoxnian. “The only way the sediment could have been exposed to sunlight is if the ice was gone,” says Bierman.
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