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 ...

Climate change is having a profound impact on the Arctic. We know that the region is warming significantly faster than the ...

As the Arctic Ocean loses its sea ice due to climate change, sunlight penetrates deeper into the water and encourages the growth of tiny plant-like organisms (phytoplankton). But to thrive, they need ...

There is a moment each year when the Arctic stops reflecting light and starts holding it. It does not announce itself. Satellites notice first. Then, researchers begin to compare notes. By late summer ...

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 ...

THE NORTHWEST PASSAGE—Climate change is melting sea ice at a quickening pace, and in the process rekindling dreams that have beguiled seafarers for centuries: finding an alternative shipping route to ...

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 Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) The snow season is dramatically shorter today, sea ice is thinning and melting earlier ...