To the ends of the Earth

In our first story, we take listeners to a place where no human has been before. Reporter Carolyn Beeler boards an icebreaker to sail along the face of Antarctica’s Thwaites Glacier. If Thwaites collapses, it could cause 2 feet of global sea level rise. But glaciologists fear the consequences could also be much worse: Thwaites may be holding back the entire West Antarctic ice sheet, almost like a cork in a wine bottle. If it crumbles into the ocean, the results could be catastrophic.