New research challenges the long-held belief that the Arctic Ocean was covered by a massive ice shelf during ice ages.

New research reveals Antarctic sea ice has hit record lows three times since 2017, creating cascading effects on global ...

A salty surge in the Southern Ocean is melting Antarctic sea ice from below — and causing dramatic changes scientists didn’t ...

Amid a warming climate and disappearing traditional knowledge, Inuit communities in the Canadian Arctic are grappling to adapt. When sea ice ages, the salt sinks into the ocean, leaving fresh ...