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

Biological matter in river runoff increasing the chances of cloud formation in the Arctic Circle is an important discovery ...

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

The tricky science behind why cold snaps sneak up on us.

“We need Greenland from the standpoint of national security,” President Donald Trump said on Jan. 5, “and Denmark is not going to be able to do it.” This was the icebreaker for a negotiation over ...

Extreme meteorologist Reed Timmer was keeping an ear out for exploding trees in Minnesota as he headed south to chase winter ...

Melting ice sheets open up land and sea that were previously inaccessible, presenting new — albeit dangerous — opportunities.

Petropavlovsk-Kamchatsky, a small city on the remote arm of land jutting out into icy seas, is a snowy place. But for the ...

NEW YORK (WABC) -- A Winter Storm Warning has been issued for New York City and the Tri-State as a powerful winter storm gets ...

2025 ranked among the three warmest years ever recorded for the global ocean despite the onset of La Niña conditions, which ...

The High Seas Treaty took effect Jan. 17, creating the first global framework to protect and manage the vast waters beyond national borders that cover more than 40 percent of the planet. Humanity is ...

Fin, humpback, and minke whales in the Gulf of St Lawrence are eating more fish and less krill than they did in the past ...