Antarctica is nearing an irreversible tipping point, with ice loss, ocean changes, and wildlife collapse threatening the global climate.

"A regime shift has reduced Antarctic sea-ice extent far below its natural variability of past centuries, and in some respects is more abrupt, non-linear and potentially irreversi

Antarctic sea ice might be one of those tipping points within the Earth's system, warned Australian Antarctic Division head scientist Nerilie Abram. Her statement reflects a new scientific perspective: the rapid decline of Antarctic sea ice is greater than a regional anomaly but a potential catalyst for irreversible global climate alterations.