New York: In a sign that this year could once again set records for loss in Greenland ice, researchers have found that the island’s ice sheet lost more than two gigatonnes (a gigaton is equal to one billion tonnes) of ice in just a day this week due to a widespread melting event. “Yesterday (13th June), we calculate #Greenland #icesheet lost more than 2 Gt of ice, melt was widespread but didn’t quite get to #SummitCamp which was just below 0 degree C. The high melt is unusual so early in the season but not unprecedented,” said the Greenland Twitter handle of the Arctic monitoring web-site Polar Portal of the Danish Arctic research institutions. The researchers found that the Greenland melt event was due to an atmospheric circulation in the Arctic and North Atlantic. The sudden spike in melting on June 13 this year is comparable to some spikes seen seven years ago, Thomas Mote, a research scientist at the University of Georgia who studies Greenland’s climate, told CNN. Melt off early in the season makes it easier for further ice loss later in the season, the researcher said. (IANS)