A warming climate could expose a Pennsylvania-sized chunk of ice-free land in Antarctica by 2300, which could drastically reshape Antarctic geopolitics as well as the continent's geography.
A study published in Nature Climate Change is the first to incorporate glacial isostatic adjustment — how land beneath heavy ice sheets uplifts after the ice retreats — into projections of ice-free land emergence in Antarctica. The results reveal that climate change could expose potentially valuable mineral resources that may spur renegotiations of the international treaties that currently govern Antarctica.
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