Changes in the annual sea ice freeze–thaw cycle in the Arctic Ocean from 2001 to 2018. The Cryosphere, 2022; 16 (12): 4779 DOI: 10.5194/tc-16-4779-2022; Cite This Page: MLA; APA; Chicago; ...

Arctic ice builds up during the winter and then melts in the summer, typically reaching its lowest levels in September, before the cycle begins again. Once Arctic summers become ice-free, the ...

The NSIDC said the measurement of sea ice taken Saturday, March 22, 2025, was 5.53 million square miles — around 30,000 square miles smaller than the lowest previous peak, set in 2017.

Today’s Arctic sea ice is more likely to resemble a snow-covered parking lot than the chaotic ice blocks Nansen saw. Two years of tanking summer sea ice—in 2005 and 2007—exposed the dark ...

The region reaches its maximum extent of sea ice in March of each year, which then begins to melt. This process takes roughly six months. The NSIDC said the measurement of sea ice taken Saturday ...

An ice-free Arctic might be just years away, researchers warned on Tuesday, a feared milestone that could arrive even earlier than expected and have far-reaching consequences for the environment ...

Arctic ice builds up during the winter and then melts in the summer, typically reaching its lowest levels in September, before the cycle begins again. Once Arctic summers become ice-free, the ...

Specifically, March sea ice extent in the Arctic this month was the lowest in the 47-year satellite record, according to scientists from the National Snow and Ice Data Center (NSIDC) in Boulder ...