Today’s Image of the Day from NASA Earth Observatory shows the changing extent of Arctic sea ice. A vast layer of frozen ...

The Arctic sea ice melt season is roughly 40 days longer than it was in 1979, yet its rapid expansion unexpectedly leveled off around 2010. Scientists say changing clouds and increasingly thin ice may ...

Arctic sea ice appeared to be entering a new phase. In the early 2020s, the rapid decline seen over previous decades seemed to ease, leading scientists to ask whether winter sea ice loss had slowed.

Vital Arctic sea ice shrank to basically tie its lowest measured level for the winter, the season when ice grows, as a warming Earth shattered records across the continents. Arctic sea ice levels, ...

The Arctic spent most of the summer of 2026 shadowing the single most catastrophic melt year in the satellite record. Every time climate scientists opened the NSIDC's daily sea ice charts, the 2026 ...