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Image copyright: http://www.eia.doe.gov/kids/energyfacts/index.html
Hydrogen is made by splitting water particles. Electrolysis is the way to split water particles. Steam reforming is another way. There are many other ways to make hydrogen fuel. 176 billion cars run on hydrogen today. Hydrogen is very clean and has little pollution. H2 is hydrogens elemental sign.Hydrogen sustains life on earth.