Antarctica’s slow melt: The answer is in the air

Twelve years after it happened, scientists finally confirm what made an Antarctic shelf collapse: warmer air.

The melting of the poles should be a huge headache for the whole world. If Antarctica, which holds about 60% of the world's freshwater locked in ice, were to fully melt, it could raise sea levels by 57m, flooding the world's coastlines and triggering a chain of environmental catastrophes that even scientists can't predict.