Ancient leaves preserved under a mile of Greenland's ice – and lost in a freezer for years – hold lessons about climate change

This ancient ecosystem showed that the ice sheet had melted to the ground in northern Greenland within the past million years.

Paul Bierman, Fellow of the Gund Institute for Environment, Professor of Geology and Natural Resources, University of Vermont • conversation
March 15, 2021 • ~10 min

Climate change is flooding the Arctic Ocean with light – what it means for the species that live there

A transcript of episode 5 of The Conversation Weekly podcast, including stories on the Arctic Ocean and new archaeological finds in Tanzania's Olduvai Gorge.

Daniel Merino, Assistant Editor: Science, Health, Environment; Co-Host: The Conversation Weekly Podcast • conversation
March 5, 2021 • ~33 min

Diving in the icy depths: the scientists studying what climate change is doing to the Arctic Ocean – The Conversation Weekly podcast

Plus, new discoveries about early humans in Tanzania's Olduvai Gorge. Listen to episode 5 of The Conversation Weekly podcast.

Daniel Merino, Assistant Editor: Science, Health, Environment; Co-Host: The Conversation Weekly Podcast • conversation
March 4, 2021 • ~5 min

Polar bears have captivated artists' imaginations for centuries, but what they've symbolized has changed over time

Do you see a fearsome predator? A fragile icon of impending extinction? What these arctic giants have stood for in art has continually evolved.

Anne Collins Goodyear, Co-Director of the Bowdoin College Museum of Art, Bowdoin College • conversation
Feb. 26, 2021 • ~10 min

How do arctic foxes hunt in the snow?

Arctic foxes have a few special talents that help them sneak up on unseen prey and pounce.

Jacob Job, Research Associate in Department of Fish, Wildlfe, and Conservation Biology, Colorado State University • conversation
Feb. 22, 2021 • ~7 min

What exactly is the polar vortex?

The media often call unusually cold, snowy storms a 'polar vortex.' The real polar vortex isn't coming down to visit the lower 48, but changes to the polar vortex can influence winter weather.

Amy Butler, Chemistry & Climate Processes Research Scientist, National Oceanic and Atmospheric Administration • conversation
Feb. 9, 2021 • ~7 min

Reindeer: ancient migration routes disrupted by roads, dams – and now wind farms

The Arctic is particularly vulnerable to climate change, but efforts to tackle it risk alienating the people who live there.

Simone Abram, Professor in the Dept of Anthropology, Co-Director of Durham Energy Institute, Durham University • conversation
Feb. 8, 2021 • ~7 min

Thawing permafrost is full of ice-forming particles that could get into atmosphere

New research shows that permafrost contains huge amounts of particles that make it easier for cloud moisture to freeze. Thawing permafrost is releasing these ice-nucleating particles.

Thomas Hill, Research Scientist, Colorado State University • conversation
Jan. 28, 2021 • ~6 min

The hopeful return of polar whales

Whales are rediscovering their old haunts in the Arctic and Southern oceans after centuries of hunting.

Lauren McWhinnie, Assistant Professor in Marine Geography, Heriot-Watt University • conversation
Jan. 1, 2021 • ~7 min

Greenland is melting: we need to worry about what’s happening on the largest island in the world

Our new research shows the island's largest glaciers are losing ice faster than previously thought.

Jonathan Bamber, Professor of Physical Geography, University of Bristol • conversation
Nov. 17, 2020 • ~5 min

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