Arctic hares spend most of their time above the northern tree line on the tundra; some migrate below the tree line in the winter. They may dwell at altitudes of up to 900 m.

Caribou, migrating birds and many other types of wildlife rely on this expanse of wetlands and tundra. Humanity and the ...

Scientists have found evidence that the Asian continent was free of permafrost all the way to its northerly coast with the ...

A rapidly warming Arctic is driving long-lasting summer extremes, such as this month’s sweltering temperatures, new research ...

New research explores the wide-ranging consequences of record low summer sea ice in Antarctica. From more ocean warming to ...

Global warming just got a brand-new source for trapping heat as Arctic tundra turns up the dial on CO2 emissions. It’s now in the ranks of cars, trains, ...

The Canadian Coast Guard maintains safe and efficient marine navigation in Arctic waters by providing icebreaking services to the shipping industry and other vessel traffic, and daily ice and ...

BOISE, Idaho — Storms fired up across southern Idaho and eastern Oregon Thursday afternoon, marking the beginning of a 24-hour period of active weather that includes the Independence Day holiday ...

Tropical moisture will remain overhead Friday, and while it won't be a total washout, another round of thunderstorms could impact your outdoor plans.

WHAT WE'RE TRACKING: Isolated strong storms possible Thursday/Friday Very hot weekend ahead, heat index values exceeding 100 Stormy next week ...

MINNESOTA, USA — A group of strong thunderstorms is putting on quite the light show east of the Twin Cities. Heavy rain, lots of lightning, and some hail all possible within these storms which ...