NEWLY SPOTTED LAKES FORMED ON GREENLAND ICE SHEET.

Source: TheGuardian

by Farah Hazwani

Greenland: A large number of glacier in Greenland melt faster than seven times as much ice per year according to newly lakes spotted on Greenland ice sheet.

The images taken by satellite shown the lake on the Greenland Ice Sheet drain five million cubic meters of water same as 2,000 Olympic-sized swimming pools in just five hours.

Source: Scientific: American

“That means sea level rises are likely to reach 67cm by 2100, about 7cm more than our main prediction. Such a rate of rise will put 400 million people at risk of flooding every year, instead of the 360 million predicted by us, the end of the century.” said United Nations' Intergovernmental Panel on Climate Change.

The study authorized by NASA and the European Space Agency, compared a combination of 26 satellite measurements of changes in the ice sheet's volume, flow and gravitational potential. 

However, according to the researcher, this is a really complex story, because there's a whole web of positive and negative feedbacks relating to hydrology.

About half of the ice loss from Greenland was from melting driven by air surface temperatures and the rest speeding up from the ice into the sea from glaciers, driven by the warming ocean.

Earlier, Greenland has lost 3.8 tonnes of ice since 1992, and the rate of ice loss has risen from 33 tonnes a year in the 1990s to 254 tonnes a year in the past decade.

-Source: (Fiona Harvey. December 2019. TheGuardian. Greenland's ice sheet melting seven times faster than in 1990s. Retrieved from https://www.theguardian.com/environment/2019/dec/10/greenland-ice-sheet-melting-seven-times-faster-than-in-1990s)