joining me now is david holland.mospheric and ocean sciences at new york university, and is a leading researcher on the global initiative that's studying the thwaites glacier. david holland, great ot have you -- to have you back on the newshour. i should explain why you look dapper tonight. you are being elected in the -- a fellow in the american geophysical union. congratulations. the last time we saw you on the newshour, you were on the thwaites glacier itself doing research. can you help us understand what this most recent research showed? >> yes. we have been seeing for the last couple decades a large change in antarctica, in particular on this one glacier called thwaites in west antarctica. it is a special glacier because it is marine based, it is largely in the ocean and the ocean can in theory easily melted. -- melt it. that is what looks like is coming to pass. warm ocean waters have arrived at the glacier and they are about to get crazy. william: it is the ice shelf that sits in front of thwaites that is in

joining me now is david holland.udies atmospheric and ocean sciences at new york university, and is a leading researcher on the global initiative that's studying the thwaites glacier. david holland, great to have you back on the "newshour". i should explain why you look so dapper tonight. you are being elected a fellow in the american geophysical union at their conference in new orleans. congratulations. viewers might remember that the last time we saw you on the "newshour", you were on the glacier glacier itself doing research there. can you help us understand what this most recent research showed? >> yes. we have been seeing for the last couple of decades a large change in an antarctica and on the particular glacier, glacier glacier, in antarctica. it's marine based and actually in the ocean and the ocean can very easily melt it. and, so, that's actually what looks is coming to pass. warmth is melting the glacier like crazy. >> reporter: it is the ie shelf that sits in front of thwaites that's in particular jeopard