Climate Denial Crock of the Week One of the most feared of climate change “feedbacks” is the potential release of greenhouse gases by melting arctic permafrost soils. New research indicates a critical threshold of that feedback effect could be closer than we once thought. …Continue Reading Permafrost: The Tipping Time Bomb (6:05)
Permafrost: The Tipping Time Bomb (6:05)
![](https://sites.up.edu/envscitheobook/files/2013/03/Perma.jpg)