Warming ocean contributes to global warming

The warming of an Arctic current over the last 30 years has triggered the release of methane, a potent greenhouse gas, from methane hydrate stored in the sediment beneath the seabed.

Japan extracts 'fire ice' gas from seabed

Japan said Tuesday it had successfully extracted methane hydrate, known as "fire ice", from its seabed, possibly unlocking many years' worth of gas for the resource-starved country.

China builds base to tap deep-sea energy: state media

China will build a multi-million-dollar research base on its east coast as it steps up its efforts to search for energy sources and rare earths on the ocean floor, state media said Friday.

Understanding methane's seabed escape

A shipboard expedition off Norway, to determine how methane escapes from beneath the Arctic seabed, has discovered widespread pockets of the gas and numerous channels that allow it to reach the seafloor.

Methane-munching microorganisms meddle with metals

On the continental margins, where the seafloor drops hundreds of meters below the water's surface, low temperatures and high pressure lock methane inside ice crystals. Called methane hydrates, these crystals are a potential ...

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