Jan 7, 2023

Arctic Sinkholes I Full Documentary I NOVA I PBS

Posted by in categories: climatology, education, sustainability

As the Artic warms permafrost (carbon frozen in time) is melting, what we once thought to be stable ground.

As the permafrost melts with warming temperatures sinkholes are on the rise which release methane gas.

What happens when methane gas is released into our atmosphere?

Official Website:

In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate.

Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas. What are the implications of these dramatic developments in the Arctic? Scientists and local communities alike are struggling to grasp the scale of the methane threat and what it means for our climate future.

00:00 Introduction.
02:22 Giant Sinkhole in Siberia.
05:54 Evidence of Methane in Craters.
09:02 Alaskan Lake Bubbling.
14:47 Effects of Permafrost Thaw on Climate.
17:26 Native Alaskan Solutions to Permafrost.
21:37 Organic Matter Impacted by Permafrost.
24:44 Greenhouse Gasses Emitted from Permafrost Thaw.
33:37 Fossil Methane in Earth’s Crust.
42:19 Tipping Point: Arctic Regions are Sinking.
47:47 How Communities are Finding Solutions.
50:15 Conclusion.

(Premieres Wednesday, February 2 at 9PM ET on PBS.)

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