Colossal explosions rock a remote corner of the Siberian tundra, leaving enormous chasms behind. In Alaska, a huge lake bursts with bubbles of flammable gas. Scientists are discovering that these mystifying phenomena constitute a ticking time bomb, as long-frozen permafrost melts and releases large quantities of methane, a powerful greenhouse gas. What are the implications of these dramatic developments in the Arctic? Scientists and local communities are struggling to grasp the scale of the methane threat and what it means for our climate future.
Official website: https://to.pbs.org/3AOUzLz
Chapters
00:00 Presentation
02:22 Giant sinkhole in Siberia
05:54 Evidence of methane in sinkholes
09:02 Alaska's Boiling Lake
14:47 Effects of thawing permafrost on the climate
5:26 p.m. Alaska Native Solutions to Permafrost
21:37 Organic matter impacted by permafrost
24:44 Greenhouse gases emitted by thawing permafrost
33:37 Fossil methane in the earth's crust
42:19 Arctic regions sink
47:47 How communities are finding solutions to thawing permafrost
50:15 Conclusion
(Premieres Wednesday, February 2 at 9 p.m. ET on PBS.)
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