Snow cover collapse: April snow cover in the western U.S. was just 41% of average, the lowest in 26 years, raising concerns over water shortages. Arctic ice record: Arctic winter sea-ice extent hit ...

In 2026, the Arctic winter sea-ice extent (annual maximum extent) reached the lowest value since satellite observations began ...

Arctic sea ice hit its second straight record-low winter peak in 2026, driven by unusually warm conditions in key regions.

El Niño intensifies: Seasonal models predict a strong El Niño could develop mid-year, potentially among the most powerful ...

The shell of ice that expands atop the Arctic Ocean every winter has done all the growing it will do this season—and that hasn’t been much. In fact, the annual winter maximum sea ice extent this year ...

Antarctic sea ice is shrinking faster than expected. New research shows how winds, ocean heat, and feedback loops caused this ...

Scientists say Antarctica’s sea ice system may have entered a dramatic new phase after decades of apparent stability, with ...

For decades, it seemed Antarctica might be insulated from rapid ice melting, but then sea ice began to decline dramatically.

In a show of Canada’s military strength, patrol group braves freezing temperatures and ferocious winds as they begin a ...