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Greenland Ice Sheet's unusual Melting baffles Climate Scientists
Scientists closely observing the Greenland’s massive ice sheet experienced a shock this week when they found that the sheet has started melting freakishly early as summer came before time, thanks to climate change.
Climate scientists at the Danish Meteorological Institute (DMI) saw on Monday that over 12% of the massive ice sheet experienced ice melt of more than one millimeter. It was surprising, as per the researchers.
It was the first time in last few years when Greenland’s ice sheet saw a huge melt. Before this, it experienced an area melt of more than 10% in 2010, 2006 and 1990. During that time, the melt happened in May. This time, the melt happened early and broke the previous records by about one month.
Robert Fausto of the Geological Survey of Denmark and Greenland said some weather stations in the upper regions of the ice sheet reported high temperatures on Monday, 11 April. Some of the sites even had temperature more than 50 degrees Fahrenheit. A station, which is over 6,000 feet above sea level, reported temperature of about 99 degrees Fahrenheit.
April never experienced such a rise in temperature in the past, said Fausto.
The DMI scientists believe a mass melt event in 2012 could be reason behind the warm day, while a recent research suggests more activity may be causing the melt.
“Our reconstruction of the present-day thermal regime of the GIS reveals more extensive areas of GF-induced basal ice melt than previously recognized and introduces the possibility that a dense network of subglacial meltwater pathways is now operating beneath the ice,” as per the study.
Another research published earlier this year concluded that increased cloud coverage in the area may be impacting the Greenland’s ice sheet.