Although this finding is a surprising and temporarily good news for the glacier, limiting its contribution to raising sea levels, the cause of ice accumulation can lead to a long-term crash.
For two decades, Jakobshavn maintained a remarkably consistent thinning. that scientists believe they will continue if not accelerate due to the widespread warming of the polar atmosphere and the oceans – but that speed was drastically slowed down in 2014, and the glacier actually grew between 2016 and 2017 and again between 2017 and 2018, according to a study published on Monday in Nature magazine.
"We did not believe at first," said Ala Hazander, NASA's leading research scientist. "We have assumed that Jakobshavn will continue to work as he has been in the last 20 years.
Jakobshavn Isbrae, the full name of the West Greenhouse Glacier, is Greenland's fastest-running and largest glacier glacier over the last 20 years, making it the biggest contributor to rising sea levels.
In fact, according to Hazander, the melting of this single glacier only contributes to the global oceans, which rise by an average of 1
And although Jakobshavn has earned ice at the lowest levels where it enters the sea still contributes to rising sea levels because the melting speed in the ocean is still higher than the ice accumulation rate higher than the glacier, according to the researchers.
controls the pool with enough ice that if it melts completely it will raise the global oceans by about 2 feet.
CNN Interactive: Global Warning