Russia's state-owned oil company Rosneft and the United States energy giant Exxon Mobil have announced a strategic deal to jointly explore and develop oil and gas reserves under the sea in the Arctic.

俄罗斯国有石油公司Rosneft与美国能源巨头埃克森美孚已宣布了一项战略协议，共同勘探和开发北极海下石油和天然气。

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Another way we can get energy from the sea is to use the power from under the oceans.

另外一种开发海洋能源的方法是利用海洋深处的动力。

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All the energy America needs for the next 100 years lies under the sea off the coast of South Carolina.

FORBES: Energy's Most Dangerous Game

These include not just petroleum but also methane hydrates, white, sorbet-like compounds that exist in profusion under the sea, perhaps containing more energy in total than all known deposits of fossil fuels.

ECONOMIST: The scramble for the seabed

National Trust Wales has pressed for the new electricity connection, necessary due to plans for increased energy production in Anglesey and the Irish Sea, to be laid under the sea to avoid any negative impact on the Welsh landscape.

BBC: National Trust opposes National Grid's pylon plans