I don&#x27;t know about that scenario. Seems unlikely - the bottom of the ocean is cold; Methane Hydrate is locked in ice nodules under the ocean floor. Warming it slightly will release it as gas - making free natural gas wells.<p>I guess its a question of, is there oxygen down there, that could cause a fire if released? Thus creating a runaway reaction.  Could be.  If that were true, I&#x27;d suppose there would be no more deposits, as Earth is hit by meteors regularly and they would pierce&#x2F;heat the deposits. So history&#x2F;geology seems to say No there&#x27;s not a problem.<p>Anyway, the Japanese already have test wells. They&#x27;re ocean-locked and have no native fuel sources. So they&#x27;re extremely interested in harvesting fuel from the sea.