Harmful algae blooms have been rapidly producing in a place previously too cold to host the toxin: the Arctic.

Evidence of algae growth and climate simulations reveal the Arctic had seasonal ice, not a permanent ice shelf, for much of the past 750,000 years. These insights challenge long-standing theories. For ...

Ground slumping in yedoma permafrost after a wildfire, in the interior of Alaska. Yedoma permafrost generally contains large ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

According to a recent study led by UW associate professors, the increase in boreal forest fires will lead to a slowdown in ...

For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but ...

New regulations present challenges to wildlife viewing in Svalbard, but they haven’t sent tourism into a deep freeze, says ...

For years, scientists have debated whether a giant thick ice shelf once covered the entire Arctic Ocean during the coldest ...

Expedition includes joint research with scientists from Argentina, Bulgaria, and Ecuador, highlighting Türkiye’s strong ...

In her new podcast, Siila Watt-Cloutier brings together Indigenous voices to explore how rapid Arctic melting is changing ...

Contained in the new federal spending law formerly known as the "Big Beautiful Bill" is funding for 17 icebreakers, 21 ...

The sea ice in the Arctic Ocean is an important climate indikator, in particular the summer ice. The September sea ice extent ...