Tundra - Stored

Published: July 21, 2016, 7 a.m.

Stored in Alaska's icy tundra is carbon that's hundreds and thousands of years old. Global warming may unlock this carbon, which could result in a runaway greenhouse effect. Our GDPR privacy policy was updated on August 8, 2022. Visit acast.com/privacy for more information.\nLearn more about your ad choices. Visit megaphone.fm/adchoices