The Toledo Zoo is welcoming back male polar bear Nuka, who has returned to Artic Encounter following a collaborative transfer ...

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

As the Arctic region is transformed by climate change, Russia's presence in Svalbard starts to look like a stroke of ...

Another blast of Arctic air was set to spread across much of the United States from Thursday night, even as local authorities ...

Polar bears are in better physical health than 25 years ago - despite sea ice losses, reveals new research. The well-being of ...

The Arctic has no clear definition, Mr Rosen writes. Some define it as anything above the Arctic Circle. Others see it as where the semi-arid grassland of the steppe turns into frigid tundra, with a ...

Researchers say a line has been crossed. For systems like coral reefs and ice sheets, the climate is already past safe.

The Seldoms, which presents multimedia performances exploring complex issues, will perform the Chicago premiere of Founding ...

A conveyor belt of ocean water that loops the planet and regulates global temperatures could be heading for a tipping point.

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

Americans stripped supermarket shelves Friday ahead of potentially "catastrophic" winter weather that threatened at least 160 ...

President Donald Trump’s greedy stare at Greenland, with its mineral riches and strategic location, has put the world on high ...