Antarctic had coal deposits for the same reason they found Mastodons with warm climate vegetation in their digestive tract.
The earth’s crust rotated about 30 deg (N to S) putting Antarctic at the south pole and the Mastodons (in Russia) near the new N pole. They basically froze to death within a day or two.
Also explains the Great Flood because if both poles melted they would have done so quickly causing cities to be covered with over 400 feet of water (in some cases - within days or a couple of weeks & other locations experiencing flash flood that wiped out everything instantly.
— Noah — Remember him?
Shades of the book “The HAB Theory”, a fictional account from the seventies I think. It postulated a capsizing earth about every 50,000 years.
When was the last Ice Age?
When did Noah and The Great Flood happen?