http://www.newsweek.com/greenland-ice-sheet-melting-four-times-faster-2003-reaching-tipping-point-1299649

Scientists have warned Greenland’s ice sheet is reaching a “tipping point,” after a study revealed it was melting four times faster than in 2003. 

The loss of ice could put coastal cities like Miami and New York, as well as islands elsewhere, at risk, according to the authors of the study, which was published in the journal Proceedings of the National Academy of Sciences.