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Thu Apr 16, 2020, 07:59 AM

Greenland Lost 600 Billion Tons Of Ice In 2019, Aided By Stuck Jet Stream, Clear Weather

Last year was one of the worst years on record for Greenlandís ice sheet, which shrank by hundreds of billions of tonnes in a high-pressure environment brought on by unusually clear skies and warmer temperatures.

A study released on Wednesday found that a record number of clear-skied days in 2019 meant that more sunlight hit the surface of the ice sheet, while yearly snowfall was also reduced.

These conditions were caused by oscillations in the fast-moving jet stream air current that also trapped heat over Europe.

The increased pressure lasted for 63 of the 92 summer days last year, compared with an average of 28 days between 1981 and 2019. The ice sheet lost about 600 billion tonnes in 2019, melting at a near record rate and much faster than the average of previous decades.



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