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April 22, 2025 46 mins

Dr. Jim Halfpenny is a renowned polar ecologist, expedition leader, and expert in cold-climate ecology with decades of experience studying the extreme environments of the Arctic and Antarctic. With a background in wildlife biology and ecology, Dr. Halfpenny has led and participated in numerous scientific expeditions to the polar regions, where he has conducted groundbreaking research on climate change, snow ecology, and the adaptation of wildlife to some of the planet’s harshest conditions.


Dr. Halfpenny's firsthand accounts paint a vivid picture of climate change's impact: shrinking glaciers, thawing permafrost releasing dangerous methane, and indigenous communities forced to relocate due to shifting wildlife patterns. His upcoming book "The Last Cold" documents these profound changes, while his research using ice cores reveals how current CO2 levels far exceed anything seen in the past 800,000 years.


Despite passing certain environmental tipping points, Dr. Halfpenny emphasizes hope through action and the importance of individual contributions to combat climate change. From infrastructure challenges in Alaska to the transformation of the Northwest Passage into a potential trade route, this episode offers crucial insights into our warming world.


Don't miss this essential conversation about one of the most pressing challenges of our time. Listen now to understand why the Arctic's story is everyone's story.


Show notes:

00:02:48 - Climate Change Observations in Greenland

00:06:05 - Impact of Climate Change on Icebergs

00:09:27 - Future of Coastal Towns and Trade Routes

00:11:14 - Understanding Historical Climate Change

00:14:13 - Carbon Dioxide and Climate Change

00:17:05 - Tipping Points and Climate Action

00:19:22 - Impact of Permafrost Thawing

00:22:43 - Challenges of Northern Train Travel

00:24:09 - Impact of Climate Change on Northern Communities

00:26:50 - Impact of Climate Change on Species

00:30:15 - Impact of Climate Change on Wildlife

00:34:44 - Impact of Climate Change on Wildlife

00:38:06 - Impact of Climate Change on Bears

00:40:12 - Grizzly Bears and Climate Change

00:41:32 - Advice for Mitigating Climate Change


  • Follow the adventures and interviews in real time at TrailLessTraveled.net and be sure to check out our visual series on YouTube, Facebook and Instagram.
  • The radio version of the show premieres Sunday nights at 6 MST, streaming live online at Trail1033.com & locally (Missoula) on the Trail 103.3 FM
  • Why listen to the radio version instead of the podcast? Well, because the radio version includes music selected by the folks we interview!
  • Please help us keep the podcast ad free by donating $3/month via PATREON. We really need your help, as of right now we are only brining in $79/month in donations.


#travelpodcast #adventurepodcast #conservationpodcast #podcast #conservation #storytelling #adventure #travel #traillesstraveled #adventuretravel #climatechange #climateaction #climatecrisis #yellowstonenationalpark #polarbears #polar


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