Rapid changes in climate in the polar regions are causing observable ecological impacts of various types and degrees of severity at all ecosystem levels. Even larger changes and more significant ...

Add Yahoo as a preferred source to see more of our stories on Google. Polar bears are divided into 19 recognized subpopulations, each facing different environmental pressures within the Arctic ...

The Arctic is emerging as a maritime crossroads where environmental risk, economic ambition and intensifying geopolitical competition converge.

The extreme light environment of the Earth's polar regions fosters unique conditions that could play a crucial role in maintaining global biodiversity over time, a new study by Finnish researchers ...

Polar sea ice is vanishing far faster than most people expected, and the change is not only visible from above. Beneath the thinning ice cover, the Arctic and Southern Oceans are becoming far more ...

Polar bears, the iconic creatures of the Arctic, have a role that extends beyond their status as apex predators. They are vital contributors to the Arctic ecosystem, providing millions of kilograms of ...

Add Yahoo as a preferred source to see more of our stories on Google. A polar bear (Ursus maritimus) walks on pack ice in Svalbard, Norway. Andy Rouse, Nature Picture Library Polar bears are often the ...

Note: Articles may be assigned to more than one subject area, as a result the sum of the subject research outputs may not equal the overall research outputs. Actionable insights into research ...

Embedded in the sea ice of the arctic are creatures so small, you can't see them with the naked eye. These microalgae convert energy from sunlight into fuel. The arctic ecosystem depends on them. In ...

This is the metadata section. Skip to content viewer section. River aufeis (ow′ fīse) are widespread features of the arctic cryosphere. They form when river channels become locally restricted by ice, ...