https://www.scientificamerican.com/article/maps-that-peer-below-antarctic-ice-show-precarious-position-of-key-glacier/ > One of Antarctica’s most vulnerable glaciers may be in more precarious shape than scientists thought. If the enormous Thwaites Glacier loses enough ice, its retreat could become “unstoppable.” > That’s according to a detailed new map of the world’s largest ice sheet, published yesterday in Nature Geoscience. Known as “BedMachine Antarctica,” the project presents a comprehensive layout of the landscape underneath the ice—all the bumps, ridges and chasms in the bedrock that form the Antarctic continent and holds its glaciers in place.