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The Big Thaw: Ground-Truthing Permafrost in Alaska
The Big Thaw: Russia's disappearing permafrost
The Permafrost Investigation
What happens when the Arctic permafrost melts? - Brendan Rogers and Jessica Howard
Inside the permafrost 'time tunnel' - BBC News
Thawing permafrost in Alaska presents threats
Ground Truth: Permafrost is Thawing | Taylor Sullivan | TEDxKC
Dangerous Gas in Alaska
Permafrost Melting in Artic
Arctic Sinkholes I Full Documentary I NOVA I PBS
Why is Alaska Sinking?
Melting Alaskan permafrost may accelerate global warming, warn scientists
