From the article, which launches into a thing about global warming:
In fact, about 80 percent of the ice lost from the Petermann Glacier, one of Greenland’s largest, comes from warm water melting the ice sheet from below, and not from calving icebergs, Kelly Hogan, a British Antarctic Survey researcher and co-author of the paper, tells Amos.
But that warm water is doubtless cooled by the latent heat absorption of the melting ice, so the planet is regulating its own temperature. There is plenty of ice there.
Neat map, though.
