The Arctic is changing rapidly, and scientists have uncovered a powerful mix of natural and human-driven processes fueling ...

Researchers report that oil-field emissions are reshaping regional atmospheric processes. Earth’s climate is shifting rapidly ...

The Arctic is rapidly changing from the climate crisis, with no "new normal," scientists warn. Wildfires and permafrost thaw are making the tundra emit more carbon than it absorbs. From beaver ...

In the Arctic, a mysterious atmospheric phenomenon generates some of the oddest clouds on Earth. Up there, streaky wisps can swiftly transform into towering thunderstorms. These strange clouds are not ...

Scientists found that sea ice cracks, pollution, and cloud formation interact to amplify Arctic warming faster than expected.

The Arctic is heating up with every passing moment, and scientists have detected feedback loops that may be fueling it, ...

The news that the frigid Arctic tundra ringing the polar region has switched from being a net absorber, or "sink," of planet-warming greenhouse gases to a net emitter, or "source," indicates the ...

Foreboding environmental milestones abounded again this year in the Arctic, where experts say dramatic climate shifts are fundamentally altering the ecosystem and how it operates. One recent turning ...