Lost samples from a secret army base reveal that Greenland's ice vanished 416,000 years ago.

That means it could melt way faster than expected.

Drilling thousands of feet down through a giant layer of ice isn't an easy task, but that's what the army liked about it.

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Along with the ice, scientists grabbed 12 feet of sediment that sat beneath the ice sheet. Most scientists were only interested in the ice, so the sediment cores were labeled, stored away in a bunch of cookie jars, and forgotten.

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That is until Danish scientists re-discovered the sediment cores in 2018 and shipped them to Paul Bierman, a geologist at the University of Vermont. There, Bierman's then PhD candidate Andrew Christ found something unexpected — signs of life.

They discovered that Greenland's ice had melted in the recent past, which was incredibly surprising, Christ said.

https://www.msn.com/en-us/weather/topstories/lost-samples-from-a-secret-army-base-reveal-that-greenland-s-ice-vanished-416-000-years-ago-that-means-it-could-melt-way-faster-than-expected/ar-AA1exUYn