The Arctic char, a red-pink bellied relative of trout and salmon, is a staple food source for millions of people living in the Arctic. But that dynamic is being embrangled by climate change, as the ...

Daily record lows could stretch from Chicago to Maine. Freezing temperatures are hitting millions in the Midwest and Northeast on Thursday and Friday, bringing a brutal cold usually seen in January, ...

Warmer Atlantic water from near Greenland is heating up the depths of the Arctic Ocean, which was previously thought of as one of the few places not significantly affected by climate change. The sea ...

Millions have seen the heart-wrenching video of a polar bear clinging to life, its white hair limply covering its thin, bony frame. Shot by Paul Nicklen and Cristina Mittermeier of the nonprofit group ...

During weeks on a research vessel drifting with an ice floe in the polar night, a photographer discovers profound beauty—and her own limitations. Polar bear guard Trude Hohle checks for a safe path ...