Episode

Arctic Sinkholes

Podcast: NOVA Presents
Published: Mar 31, 2026
Duration seconds: 997
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Canonical source: https://play.prx.org/listen?ge=prx_322_6a26623c-8b0e-4bad-809b-bb06a4dfa25f&uf=https%3A%2F%2Ffeeds.wgbh.org%2F322%2Ffeed-rss.xml
Audio: https://dts.podtrac.com/redirect.mp3/tracking.swap.fm/track/sblTq32fyWAjsHzze2LG/dovetail.prxu.org/_/322/6a26623c-8b0e-4bad-809b-bb06a4dfa25f/NOVA_Remix_Arctic_Sinkholes_Podcast_Audio_A_FINAL_01.mp3
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Markdown: /podcast/nova-presents-1297629/arctic-sinkholes.md

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Summary

What happens when the Arctic’s ancient freezer starts to fail? Scientists have uncovered the truth behind giant sinkholes exploding from the frozen ground in Siberia, and a vast lake bubbling with methane in Alaska .They are pointing to a dramatic shift beneath our feet – one driven by thawing Arctic permafrost, the vast frozen layer that stores nearly twice as much carbon as the entire atmosphere. Learn why these geological curiosities reveal a dangerous climate wildcard – one powerful enough to accelerate global warming in ways current models don’t yet predict. To watch the full film, visit https://www.pbs.org/wgbh/nova/video/arctic-sinkholes/ Learn more about NOVA and subscribe to our YouTube channel.