New data shows winter sea ice has reached a record low, raising concerns over warming trends and long-term climate impacts.

Record-low winter sea ice in the Arctic this year adds to a continued trend of decreasing seasonal sea ice and an increase in threats faced by communities along Alaska’s northern and western shores.

Typically, sometime in March every year at the end of the long Arctic winter, the maximum of Arctic sea ice extent is reached ...

The Copernicus Climate Change Service has revealed that March 2025 saw the lowest sea ice maximum extent in the 47-year ...

To make matters worse, NASA scientists also discovered that, this year, summer ice in the Antarctic retreated to 764,000 square miles (1.98 million square kilometers) as of March 1, tying for "the ...

Arctic sea ice has recorded its smallest winter peak extent since satellite records began 47 years ago, new data reveals.

Arctic sea ice reached a record-low winter maximum on March 22, 2025, with just 5.53 million square miles of coverage—well ...

The meltdown extends beyond the Arctic. Antarctica recently flirted with a record low in its own annual sea ice minimum – ...

The winter growth period for sea ice in the Arctic Ocean is now over, with levels at a record low. The winter ice extent on 21 March 2025 was lower than at any time since continuous satellite ...

Arctic sea ice hit a historic low this winter, shrinking to the smallest extent ever recorded at its seasonal peak. NASA and ...

In March, the Arctic is typically more frozen over than at any other time of year. But this year, the region had a record low amount of sea ice cover in March. That’s according to new data from Europe ...

The formation of sea ice also makes the surrounding water saltier, as salt is pushed out when water freezes. If less sea ice ...