GREENLAND - Will probably be the focus of near term sea level rise

Greenland is almost all covered by a very thick glacial ice cap. If all of Greenland's ice either melted or slid into the oceans, sea level would rise by about 20 ft. The bad news is that arctic temps are rising rapidly, and Greenland's glaciers are melting rapidly. This melt water is finding its way to the base of the glaciers via vertical caves called moulins. For a great summary of research into this, with pics inside the moulins, see this Washington Post Dec 23, 2020 article (link):

Scientists descended into Greenland’s perilous ice caverns — and came back with a worrying message