Standing On Ice News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Then later we call climate change. >> reporter: university of new york professor david holland is studying the warming impact on the glaciers. in 2018 professor holland and his wife capturing a spectacular event, 4 mile wide, half mile deep and more than mile-long chunk of ice breaking away from the helm hiem glacier, dumping tens of billions of chunks of ice into the ocean. i joined him on board his research boat, where he and his team spent up to a month at sea gathering data along greenland's southeast coast. is the rate of warming increasing? >> as we look on the ocean, it's very warm wate...

On the planet. i traveled there to see the devastating effects first-hand. this is a glacier -- or what's left of it. the guide witnessed its retreat over the past several years. what did this glacier used to look like? >> the glacier height was the height of the mountain right there. this to me is a very big volume of water that today is in the ocean and not on land anymore. >> reporter: right. sounds very hollow almost where we're walking. >> yeah, but it's full at least 100 meters below us of ice. >> reporter: as we continued on, i got to witness climate change in realtime. that's a chunk o...

World would be affected. >> do we have climate change signs where we're flying right now? >> absolutely. we can see, especially greenland, the impact of the warming through the retreat of the glacier. >> extent of the ice melt here in greenland will actually help determine just how high sea levels will rise. i ended my epic adventure on what's left of the glacier with guide niko serreto. all of this ice that's come off has been since we've gotten here, we've been hearing it and seeing it falling off. and it's going into the ocean. what happens? >> it's very important here, standing on ice, to ...