Vital Arctic sea ice shrank to tie its lowest measured level for the winter, the season when ice grows, as a warming Earth shattered records across the continents. Subscribe to read this story ad-free ...

Right now, the Arctic is maxing out on sea ice – the cold of winter has built up over months of darkness, and ice has spread as far south as it will all year. It’s the North Pole’s sea ice maximum, ...

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 ...

For the past seven decades, Canada has been the junior partner in a military agreement with the United States to protect the Canadian Arctic. By Norimitsu Onishi Reporting from Cambridge Bay, Nunavut, ...