sea ice

A jellyfish passes directly in front of the camera.

Under the Sea Ice, Behold the Ancient Arctic Jellyfish

A video reveals mature jellyfish under the Arctic sea ice, where they aren’t supposed to be.

by |October 23, 2017
Greenland's ice can "darken" in ways we can see and ways we can't. Photo: Marco Tedesco

State of the Arctic: Longer Melting Seasons, Thinning Sea Ice

The Arctic is warming twice as fast as the rest of the planet, and scientists are seeing the effects across ice and ecosystems. Lamont-Doherty Earth Observatory’s Marco Tedesco describes the changes underway.

by |December 13, 2016
Penguins in West Antarctica

Climate Is Changing Fast in West Antarctica

Fast-rising temperatures on the Antarctic Peninsula are having an impact on the ice and marine life, and providing clues about future ecosystem changes elsewhere.

by |November 20, 2015
A Crabeater seal in the South Shetland Islands, Antarctica. Photo: ravas51, Flickr.

Antarctica’s Wildlife in a Changing Climate

We hear a lot about polar bears and other Arctic mammals in connection to climate change, but what about biodiversity in Antarctica?

by |October 26, 2015
Sea ice algae.

A Tale of Sea Ice, Algae and the Arctic

I returned to New York on Monday, but Lamont-Doherty Earth Observatory scientists Andy Juhl and Craig Aumack remain working in Barrow, Alaska for another week. They’ll continue to collect data and samples in a race against deteriorating Arctic sea ice conditions as the onset of summer causes the ice to thin and break up.

by |May 29, 2013