One Melting Glacier In Greenland Is Now Growing Again

Olive Hawkins
March 29, 2019

"That was kind of a surprise".

This a good news may be short lived. "But it is going".

For the last 20 years, the Jakobshavn Glacier in Greenland was one of the fastest shrinking ice sheets in the world, losing on average 1.8 miles of ice annually while thinning 130 feet per year, according to The Associated Press. "For the whole of Greenland, the Jakobshavn is the king of the glaciers".

It lost a piece of ice a few years ago in 2015 the size of Manhattan.

Researchers believe that the cooling is related to a natural variation in the climate in the Northern Hemisphere known as the North Atlantic Oscillation, which can warm or cool the northern portions of the Atlantic Ocean in periods of several years (not too dissimilar from the impact that El Niño and La Niña can have on Pacific Ocean temperatures).

The Oceans Melting Greenland (OMG) project has recorded growth on the edges of the Jakobshavn Glacier since 2016.

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NASA has conducted yet another study on climate change and global warming and found that Greenland's fastest-melting glacier is showing progress in recovery. But the last two years it started growing again at about the same rate, according to a study released on Monday, March 25, 2019, in Nature Geoscience. The water can get cooler and have effects, but in the long run it is getting warmer and the melting will be worse, he said.

Tom Wagner, NASA Headquarters program scientist for the cryosphere, who was not involved in the study, said, "The OMG mission deployed new technologies that allowed us to observe a natural experiment, much as we would do in a laboratory, where variations in ocean temperatures were used to control the flow of a glacier". Over the decades the water has been and will be warming from man-made climate change, he said, noting that about 90 per cent of the heat trapped by greenhouse gases goes into the oceans.

The report, says that it's been thickening, flowing slowly, and rising towards the ocean.

Scientists estimate a climate pattern called North Atlantic Oscillation is driving the ocean temperature changes observed along Greenland's west coast. This will take place at the same time as climate change turns up the thermostat on earth's oceans.

What's happening, Joughin said, is "to a large extent, a temporary blip". Downturns do occur in the stock market, but overall the long-term trajectory is up. "This is really the same thing".

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