In the Philippine Trench in a depth of until up to three miles one of the world-largest deposits of deuterium (heavier hydrogen) was also found. The isotope of the hydrogen can be used as non-polluting source of energy like fuel.
Deuterium can replace gasoline, LPG, LNG, Avgas, etc. in powering all types of internal combustion engines. It does not emit pollutants or any harmful carbon monoxide and does not cause any environmental problems because it is in a member of the water family. Emissions are nothing but water vapor or steam. Deuterium as hydrogen fuel can be used for cooking, lighting, heating, and as heavy water fuel for reactors in electric power generation.