Sierra, Jan 21st, 2020

Imagine 2,000 elephants running into the ocean.

The Greenland ice sheet loses that much water in weight every second, according to Dartmouth climatologist Erich Obsterberg. It equals about 250 billion tons per year. Arctic sea ice as a whole has gone from 7 million square miles in 1979 to a little over 4 million in 2019. Meanwhile, Antarctica is wasting away at six times the rate it was 40 years ago..

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