From sea ice to ocean currents, Antarctica is now undergoing abrupt changes – and we will all feel them
By Nerilie Abram, Australian National University; Ariaan Purich, Monash University; Felicity McCormack, Monash University; Jan Strugnell, James Cook University, and Matthew England, UNSW Sydney Antarctica has long been seen as a remote, unchanging environment. Not any more. The ice-covered continent and the surrounding Southern Ocean are undergoing abrupt and alarming changes. Sea ice is shrinking rapidly, the floating glaciers known as ice shelves are melting faster, the ice sheets carpeting the continent are approaching tipping points and vital ocean currents…