Greenland has lost a staggering amount of ice — and it’s only getting worse: A massive new study by 16 authors has calculated just how much ice the Greenland ice sheet has lost since the year 1900. And the number is astounding: 9,103 gigatons (a gigaton is a billion metric tons).

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Greenland has lost a staggering amount of ice — and it’s only getting worse: A massive new study by 16 authors has calculated just how much ice the Greenland ice sheet has lost since the year 1900. And the number is astounding: 9,103 gigatons (a gigaton is a billion metric tons).