West Antarcticaâs history of rapid melting foretells sudden shifts in continentâs âcatastrophicâ geology
Due to its thick, vast ice sheet, Antarctica appears to be a single, continuous landmass centered over the South Pole and spanning both hemispheres of the globe. The Western Hemisphere sector of the ice sheet is shaped like a hitchhikerâs thumb â an apt metaphor, because the West Antarctic ice sheet is on the go….
