The Greenland ice sheet is the second largest body of ice in the world, after its counterpart in Antarctica.
A team of researchers from the University of Wyoming has uncovered an unusual process taking place on the Greenland ice sheet , which could have significant implications for how it responds to climate change.
The team found that, surprisingly, the sliding is taking place over a hard bedrock and not softer material, such as mud, that usually acts as a lubricant. For the study, the scientists drilled hundreds of holes into the ice bed using the"fastest ice drill in the world," which is capable of boring 5,000 feet deep in eight hours. They then installed a network of more than 200 tilt sensors to collect data on the ice movement.
The Greenland ice sheet is more than 1.2 miles thick in most regions. If all of its ice was to melt, global sea levels could be expected to rise by about 25 feet. However, this would take more than 10,000 years at the current rates of melting.
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