7,000 massive methane gas bubbles under the Russian permafrost could explode anytime
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Yamal Penninsula, Siberia, Russia |
Crater formed from underground methane explosion in Siberia. CREDIT: Siberia Times ThinkProgress (https://cdn-images-1.medium.com/focal/720/379/44/24/1*1zg_xVFJZ_XCx6wr5GzU3w.jpeg)