Photos: Hydrogen Road Tour gets into gear

Nuvera CEO Roberto Cordaro fills 'er up with hydrogen as the media tries to capture the moment. There are currently 16 hydrogen refueling stations in the U.S., and hundreds of consumers are using fuel-cell vehicles.

In a fuel-cell car, hydrogen is converted to electrical current which powers the car.

Photo by Martin LaMonica/CNET News

Caption by Martin LaMonica