The melting is the worst that has been observed since researchers have been monitoring the ice sheet, the agency said in a statement posted on its website. According to records from ice cores, it is the worst melt since 1889.http://www.latimes.com/news/science/sciencenow/la-sci-sn-greenland-ice-melts-20120725,0,6340849.story
Article courtesy of The Los Angeles Times -Science Now by Thomas H. Maugh II