Of the world's automakers, General Motors is the most resolute champion of a future filled with vehicles powered by hydrogen fuel cells that emit only water as exhaust.

FORBES: Hydrogen Gas

When the Department of Environmental Protection noticed hydrogen sulfide in the city's water supply, Stephen Hollowell, general manager of Steinhatchee's chlorine-based water-treatment plant, and his board were willing to a take a chance on new technology.

FORBES: Magazine Article

Companies like Ford and General Motors, unfortunately late to the game, but are pushing hybrids and moving toward hydrogen vehicles.

NPR: Companies See Profits in Going Green