The Greenland and Antarctic ice sheets are now losing more than three times as much ice a year as they were 30 years ago, according to a new comprehensive international study. Know more:
The Greenland and Antarctic ice sheets are now losing more than three times as much ice a year as they were 30 years ago, according to a new comprehensive international study.
Study lead author Ines Otosaka, a glaciologist at the University of Leeds in the United Kingdom, said speeded-up ice sheet loss is clearly caused by human-caused climate change. “This is a devastating trajectory,” said US National Snow and Ice Center Deputy Lead Scientist Twila Moon, who wasn’t part of the study. “These rates of ice loss are unprecedented during modern civilization.”
A team of more than 65 scientists regularly calculates ice sheet loss in research funded by NASA and the European Space Agency with Thursday’s study adding three more years of data. They use 17 different satellite missions and examine ice sheet melt in three distinct techniques, Otosaka said, and all the satellites, radar, on the ground observations and computer simulations basically say the same thing—ice sheet melting is accelerating.
Antarctica from 2017 to 2020 is still losing about 127 billion tons of ice a year, down 23 percent from earlier in the decade, but overall up 64 percent from the early 1990s.
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