HARLOW: Welcome back. I'm Poppy Harlow in New York. And a new study shows the rate at which ice is melting in Antarctica has tripled in the last six years. This is a team of 80 scientists that came to this conclusion. And their study argues that 200 billion tons of ice is now pouring into the oceans. Let's go to our meteorologist Chad Myers with more. What do you make of the study and what does it mean for the American cities that are most at risk because of rising sea levels?</s>CHAD MYERS, AMS METEOROLOGIST: We know that the sea level rise rate has gone up worldwide. But truly didn't know where it was all coming from until this study came out and we know that a lot of it is coming from west Antarctica. East Antarctica is melting but not at the rate that west Antarctica is. We're losing -- drastically we're losing ice off of that, melting into the ocean, much of it from under the glacial sheets because the water is warmer, melting the ice from below. But it's the drop off that's most concerning. Between 1992 and about 2012 we were losing 76 billion tons a year. The last few years, 219 billion tons. Now, there are big pluses and minuses there. And even if you put plus on the one side, minus on the other, you still get a significant rate rise. So since 1900, the ocean has gone up 7.7 inches. But since 1990, the ocean has gone up 2.6 inches. So it's that rate of how quickly it's going up that we're most concerned about, and that's the sea level rise problem that we're facing here across the globe.</s>HARLOW: Yes. And you think about, you know, those cities along the coast at sea level, a lot of major concerns, Florida and the like. Thank you, Chad, appreciate it. Coming up, defending a dictator. President Trump calls Kim Jong-un a tough guy who may have done some bad things, but then the president adds, so have a lot of other people. Reaction to that ahead.
Antarctica's Ice Is Melting Faster.