The rate that Greenland‘s ice sheet is melting surpassed scientists’ expectations and has raised concerns that their worst-case scenario predictions are coming true, Business Insider reported.

new study published in the journal Nature from a team of scientists at NASA and the European Space Agency looked at satellite imagery from 1992 to 2018 from 26 independent data sets. The images revealed a massive amount of ice loss that is picking up steam as time goes on. In fact, the researchers found that Greenland has lost 3.8 trillion tons of ice over the 26-year period studied.

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