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An ice shelf in Antarctica nearly the size of Los Angeles disintegrated in mid-March within days of extraordinary warmth on the continent, scientists say.
As meltwater trickles down through the Greenland ice sheet, it heats up – which means that some areas at the base of the ice sheet are melting 100 times faster than we thought
The base of the Greenland Ice Sheet is melting at an alarming rate due to great amounts of meltwater falling from the surface. When the meltwater begins to fall, energy changes to heat in a process similar to the hydroelectric power which large dams produce.
This effect is by far the largest heat source beneath the world's second-largest ice sheet, a University of Cambridge-led study found, leading to phenomenally high rates of melting at its base.
A new study published in the journal PNAS suggests that Greenland might have been largely ice-free millions of years ago. Researchers arrived at this conclusion after studying ice core [...]