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 ...

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

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

In 2006, scientists released the first version of the Arctic Report Card, now a staple at the Fall Meeting of the American ...

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.

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

Cutting down swathes of boreal forest and sinking the trees into the depths of the Arctic Ocean could remove up to 1 billion tonnes of carbon dioxide from the atmosphere each year. Coniferous trees ...

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