Arctic sea ice levels are crucial to Earth's climate because, without the ice reflecting sunlight, more heat energy goes into the oceans.

Arctic sea ice peaked at its lowest winter maximum in nearly five decades of satellite tracking, according to measurements recorded on March 22, 2025. The record came during a month when global sea ...

Arctic sea ice reached its annual winter maximum on March 26, 2026, tying the lowest extent ever recorded for this time of year. The announcement, coming as global temperature data continues to show ...

Arctic sea ice has large effects on the global climate. By cooling the planet, Arctic ice impacts ocean circulation, atmospheric patterns, and extreme weather conditions, even outside the Arctic ...