1) I have heard that it never snows in Antarctica (very, very rarely actually). The snow that does fall, never melts.
What if it did actually snow frequently in Antarctica? I guess that every water molecule on earth would eventually get to that area, and it would snow and never melt. So Antarctica would be building up enormous ice and eventually taking up all the water in the world.
2) If Pangaea was located mostly in the arctic or antarctic areas (say the center of it was in the north or south pole), how would that have affected the evolution of life on earth up to today?
I wonder about this.