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 ...

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 ...

For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired ...

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 ...

Led by the European Research Council Synergy Grant project Into the Blue – i2B, the research team studied sediment cores collected from the seafloor of the central Nordic Seas and Yermak Plateau, ...

Mercury (Hg) is an environmental concern in the Arctic, where high concentrations are found in top predators such as polar bears and toothed whales. Despite declining atmospheric Hg emissions since ...

Arctic sea ice hit its 2025 summer minimum without setting a record low on Sept. 10, despite a historically low winter maximum earlier in the year. Scientists say sea ice loss has slowed over the past ...