Wednesday , December 8 2021

The ice sheet & # 39; Greenland is melting at the fastest in its 350 years



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The Greenland ice sheet is shrinking faster than in today & # 39; a point in the last 350 years, according to a new study published in the journal nature. The research is the first continuous analysis, multi-century, a & # 39; melting and runoff on the ice sheet, one of the biggest drivers of the level of sea level increase globally.

The scientist of the glaciologist and climate Luke Trusel of & # 39; University & # 39; Rowan, team & # 39; U.S. and European researchers analyzed more than three centuries & # 39; models & # 39; melting in & # 39; ice bars from West & # 39; Greenland. Then bound this historical data to & # 39; Modern observations melting and hike over the entire ice sheet, and created a timeline dating back to 1650.

"From a historical perspective, rates & # 39; today are melting off the charts," said Sarah Das, glaciologist at the Oceanographic Institution & # 39; Woods Hole and co-author of the new study. "We found an increase & # 39; 50 percent in the total run & # 39; detonation & # 39; ice against the beginning of the industrial age, and increase & # 39; 30 percent of the 20th century only. "

According to the analysis, the melting ice on the & # 39; sped up in Greenland & # 39; mid-1800, shortly after the start of heating & # 39; industrial era in the Arctic. Over the past 20 years, the intensity of melting has increased 250-575 percent compared with the rates of & # 39; industrial melting. Across the ice sheet, the melting was faster in 2012 than any other year and the most recent decade included in the analysis of the ice core, from 2004 to 2013, experienced "more sustained growth and increased melt any other period & # 39; 10 years "in the record & # 39; 350 years, scientists wrote.

"The melting is not only growing – is accelerating," said Trusel nature. "And that is a major concern for the future."

The ice sheet & # 39; Greenland is the largest single contributor to the global sea level today, adding 72 cubic miles of & # 39; Water soluble in the world's oceans each year. The ice sheet has the potential to raise global sea levels by 23 feet if dissolved in its entirety.

This article was originally published by Yale Environment 360. Read the original story here.

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