The Arctic Ocean, once locked in a vault of thick, old ice, now is transforming at lightspeed. Temperatures there are increasing at up to four times the rate of the planet overall, melting sea ice ...

Polar bears near Svalbard are gaining fat despite sea ice loss, revealing how some Arctic wildlife is adapting to warming.

Each year on 27, International Polar Bear Day draws attention to one of the Arctic’s most powerful predators, the polar bear ...

Melting Arctic ice is revealing a hidden world of nitrogen-fixing bacteria beneath the surface. These microbes, not the usual cyanobacteria, enrich the ocean with nitrogen, fueling algae growth that ...

Remains of an ancient Arctic rhino indicate that land mammals traversed the North Atlantic via land bridges, and did so much more recently than previously thought.

The student course Arctic Future Pathfinders, which is held on the sailing ship Statsraad Lehmkuhl going through the Northwest Passage, combines cutting-edge science with hands-on education. The ...

New study shows that 16 percent of the Arctic Ocean’s organic carbon comes from terrestrial sources, such as thawing permafrost and eroding coastlines. Climate change and the associated rising ...

The lush greenery of the Amazon rainforest is often called the “lungs of the planet,” but really land plants are just half of the equation. The other lung dwells in the sea. Single-celled ...

One of the ocean currents in the Arctic Ocean is at risk of disappearing this century because of climate change, according to a new joint study from the University of Gothenburg and the German Alfred ...