Antarctic tipping points: the irreversible changes to come if we fail to keep warming below 2℃ - Modern Sciences
modernsciences.org
Timothy Naish, Te Herenga Waka — Victoria University of Wellington The slow-down of the Southern Ocean circulation, a dramatic drop in the extent of sea ice and unprecedented heatwaves are all raising concerns that Antarctica may be approaching tipping points. The world has now warmed by 1.2℃ above pre-industrial levels (defined as the average temperature

This is a good summation of the problems facing Antarctica in the near future.

I guess the time to talk about keeping warming under 1.5℃ has passed.