How much warmer is the ocean in the arctic?
If the simplistic interpretation that cooling causes more ice is incorrect in the antarctic, then why is the simplistic version of warming causing less ice in the arctic correct?
Simplistic indeed.
The Arctic would be open ocean if not for the ice. Antarctica is a mountainous continent large than Australia.
Most sea ice in the Arctic is frozen from salty sea water every year. The ice freezes all the way across from North America to Europe and Asia every winter, and mostly thaws every summer.
Most sea ice in the Antarctic is old fresh-water glaciers sitting on 10,000-foot-high plateau sliding into the sea, with ocean ice freezing on the margins every winter (northern hemisphere summer).