Melting of polar ice shifting Earth itself, not just sea levels

Sophie Coulson and colleagues analyzed satellite data on melting glaciers and its impact on the Earth’s crust. Credit: Sophie Coulson

The melting of polar ice is not only shifting the levels of our oceans, it is changing the planet Earth itself. Newly minted Ph.D. Sophie Coulson and her colleagues explained in a recent paper in Geophysical Research Letters that, as glacial ice from Greenland, Antarctica, and the Arctic Islands melts, Earth’s crust beneath these land masses warps, an impact that can be measured hundreds and perhaps thousands of miles away.

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