Here’s the story in Time Magazine. I took this photo of a similarly sized iceberg off Fogo in Newfoundland. The difference? The one in my photo is about 20 km from my camera. They are huge of course. As the ice breaks up in the Arctic, more of these will be moving south down the Chanel between Labrador and Greenland. How will that change the dynamics of the Atlantic Ocean? Well, there is this report by Rasmus Pedersen. Money quote:

These characteristics mean that sea ice loss initiates feedbacks that contribute directly to Arctic amplification of near-surface warming (Serreze et al. 2009; Screen and Simmonds 2010; Serreze and Barry 2011).