Greenland's glaciers have been shrinking for the past century, according to a Danish study, suggesting that the ice melt is not a recent phenomenon caused by global warming.Danish researchers from Aarhus University studied glaciers on Disko island, in western Greenland in the Atlantic, from the end of the 19th century until the present day.
"This study, which covers 247 of 350 glaciers on Disko, is the most comprehensive ever conducted on the movements of Greenland's glaciers," glaciologist Jacob Clement Yde, who carried out the study with Niels Tvis Knudsen, told AFP.
Using maps from the 19th century and current satellite observations, the scientists were able to conclude that "70 percent of the glaciers have been shrinking regularly since the end of the 1880s at a rate of around eight meters per year," Yde said.
"We studied 95 percent of the area covered by glaciers in Disko and everything indicates that our results are also valid for the glaciers along the coasts of the rest of Greenland," he said.
The biggest reduction was observed between 1964 and 1985.
"A three-to-four degree increase of the temperature on Greenland from 1920 to 1930, and the increase recorded since 1995 has sped up the ice melt," he said.