Methane hydrate is methane that is locked in ice. Huge amounts of methane are available for economical production via gas hydrates as soon as humans learn to produce them economically and cleanly. The Japanese have been particularly active in researching ways to produce methane from hydrates cleanly and efficiently.

Japan has been looking to diversify its energy resources since the powerful March 11 earthquake and tsunami triggered the world's worst nuclear accident in 25 years

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