Ominous News From Deep Beneath Doomsday Glacier

The Thwaites Glacier in Antarctica—the so-called "Doomsday Glacier"—is in the news again. We are fascinated with it because it is the Godzilla of glaciers, 80 miles across and as massive as Florida. If the ice sheet holding it back were to melt, and if Thwaites plopped into the ocean, it would all b...