Earth & Climate
A $65 trillion bill hides under the Arctic seabed
A Nature paper priced one Arctic methane scenario at $65 trillion. Igor Semiletov explains why the shallow Siberian shelf is where it could start.
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Earth & Climate
Why the Sea Drains Away Just Before a Tsunami Hits
When the sea pulls back from the shore, the seabed near the coast has just sunk. An oceanologist explains why the water falls first and the big wave follows.
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Earth & Climate
The Volcano Wave That Beat Its Own Tsunami Warning by Hours
A 2022 volcanic blast sent an air wave across the Pacific at tsunami speed. It pushed the ocean as it went, and the seabed felt more pressure than the sky.
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Earth & Climate
A Patch of Arctic Sea Boils Like a Jacuzzi, and It Keeps Growing
Off the Siberian coast, patches of sea over a kilometre wide bubble with methane, and the biggest are growing. Why the climate's methane count may be too low.
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Earth & Climate
The Ocean Wobbles Like Jelly When the Seabed Moves
Two cable sensors sat on the seafloor when the 2003 Tokachi-oki quake hit. Their records showed the ocean shaking like jelly and sending sound into the seabed.
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Earth & Climate
The Tallest Wave on Record Was Taller Than the Eiffel Tower
The biggest wave ever recorded was 524 metres high and began as a landslide in a narrow Alaskan bay. Oceanologist Mikhail Nosov on Lituya Bay.
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