An underwater robot named Icefin that has gone where no submersible has gone before — to the underbelly of Antarctica's "Doomsday Glacier" — has uncovered unusually warm temperatures there.
The hunk of ice, officially known as the Thwaites Glacier, earned its ominous nickname because it is one of Antarctica's fastest melting glaciers. Even so, scientists were surprised to learn that waters at the ground line, the region where the glacier meets the sea, are more than 3.6 degrees Fahrenheit (2 degrees Celsius) above the normal freezing temperature, according to news reports.
"Warm waters in this part of the world, as remote as they may seem, should serve as a warning to all of us about the potential dire changes to the planet brought about by climate change," David Holland, a lead researcher on the expedition and director of the Environmental Fluid Dynamics Laboratory at New York University, told the Chicago Tribune.
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