Across the Northern Hemisphere, familiar seasons are starting to feel unfamiliar. Heat waves linger, cold snaps arrive out of sync, and storms stall over the same unlucky regions. At the heart of this ...

There's a confounding dilemma for many folks trying to make sense of winter weather in the context of climate change.

Decades of advances in satellite observation made it seem as though Arctic snow cover was growing, when in reality satellites ...

An unusually brutal winter storm is set to pummel more than 160 million Americans from Friday, as a stretched "polar vortex" sends a devastating blast of Arctic air, bringing heavy snows and freezing ...

Arctic sea ice helps cool the planet and influences weather patterns around the world, but it is disappearing faster than ever as the climate warms. Scientists have now developed a new forecasting ...

Earlier research has shown that the Arctic is warming significantly faster than the rest of the planet, leading to reductions ...

The US is a nation divided, with frigid conditions, snow and ice entrenched east of the Rockies all the way into Florida, and record warmth and paltry snowfall in the West.

The Arctic is not just getting warmer. It is starting to behave in new manners in ways that are dangerous for nature. For ...

Polar bears need ice for their long term survival as less or shrinking ice forces these creatures to travel long distances in ...

Purposefully sinking boreal trees could help lock away carbon for millennia or longer, but the audacious plan comes with ...

Arctic sea ice has large effects on the global climate. By cooling the planet, Arctic ice impacts ocean circulation, ...

For most of their evolutionary history, narwhals have relied more on sound than sight to survive in the Arctic’s dark icy ...