“Remains of 90 million-year-old rainforest discovered under Antarctic ice”
https://www.livescience.com/ancient-rainforest-antarctica.html
Much warming must occur for antarctica to return to normal.
The baffling Piri Reis Map of 1513: It showed Antarctica centuries before discovery, but without its ice cap
https://www.thevintagenews.com/2018/01/02/piri-reis-map-of-1513/