Purposefully sinking boreal trees could help lock away carbon for millennia or longer, but the audacious plan comes with ...

“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

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

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

Trump is right that American security now depends on Greenland, although he should remember there is strength in allies.

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 ...

As Trump points to Russia and China near Greenland, experts say the biggest Russian and Chinese activity is elsewhere in the ...

Henningsvær Football Field is located in the fishing village of Henningsvær, part of Norway’s Lofoten Islands above the ...

"The structures that we were able to identify in the images are clearly the mouth of a river into an ocean." The post ...