Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests. New evidence of ...

Arctic clouds form faster when seeded by gases released from terrestrial organic matter carried by rivers into the Russian Arctic Ocean.

Organic matter carried in rivers to the Russian part of the Arctic Ocean may be creating more clouds and keeping the region ...

Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean billions of years ago ...

Far below the ice, in a realm long assumed to be almost lifeless, scientists have stumbled on a thriving oasis nearly 2.5 ...

Global efforts to reduce pollution will not be enough to mitigate the worst effects of climate change, scientists say. We ...

Long thought of as a dry, barren world, Mars may once have shimmered with shades of blue. A new study reveals the discovery ...

Cutting down boreal forest and sinking the felled trees in the depths of the Arctic Ocean could remove up to 1 billion tonnes ...

The Trump administration is eying the possibility of oil leasing in Arctic Ocean areas more than 200 miles from shore, an area where U.S. territorial rights are unclear. Information about the Trump ...

An abundance of natural resources, faster trade routes and military advantages have powers around the globe vying for a slice ...