Antarctic Glaciers Are Growing Unstable Above and Below Water

That study, published today in the Proceedings of the National Academy of Sciences, concludes that understanding how the ice field ruptures as it moves across the bedrock is vital to understanding when this collapse might occur. In addition to identifying the weak points in the glacier, Lhermitte and colleagues created a computer model to predict how such cracking and buckling could affect other Antarctic glaciers in the future.

Lhermitte says the goal of this model was not to predict the exact date when Thwaites will collapse. That’s next to impossible right now, because there are too many other unknown factors to consider, such as the pace of climate change that is warming both the air and water temperature around the glaciers, as well as the movement of ocean currents around Antarctica. (A 2014 study published in the journal Science by University of Washington scientists used satellite data and numerical

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