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Greenland’s Ice Sheet is melting from the bottom up

Greenland’s Ice Sheet is melting from the bottom up and is now the largest single contributor to global sea level rise, a new study has warned. 

Researchers have observed ‘unprecedented’ rates of melting at the bottom of the ice sheet, caused by huge quantities of meltwater falling from the surface to the base. 

As the meltwater falls, energy is converted into heat in a similar way to how hydroelectric power is generated by large dams.

This effect is by far the largest heat source beneath the world’s second-largest ice sheet, an international team of scientists led by the University of Cambridge found, leading to phenomenally high rates of melting at its base. 

Warning: Greenland’s Ice Sheet (pictured) is melting from the bottom up and is now the largest single contributor…


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