There’s a giant trove of frozen methane, or “fire ice,” locked beneath our ocean’s surface. If released, it could trigger tsunamis, landslides and release huge amounts of carbon into our already-warming atmosphere. But we have almost no idea how much there is or where to find it.

That’s in part because frozen methane on our planet takes many more forms than we previously thought, and we are only now beginning to recognize some of them, Ann Cook, an associate professor in the School of Earth Sciences at The Ohio State University said during a presentation yesterday (June 25) here at the annual Astrobiology Science Conference.

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