I stand corrected, I just visited google.
It DOES use Hydrogen, but doesnt burn it, just breaks it down into electrons(power), heat, air and water.
Ballard Fuel Cell:
[img class=image-inline title="Ballard Fuel Cell" alt="Ballard Fuel Cell" src="vny!://www.ballard.com/images/image_gallery/technology/pem_fuelcell.gif" border=0]
Heres the write-up:
[A href="vny!://www.ballard.com/be_informed/fuel_cell_technology/how_the_technology_works"]vny!://www.ballard.com/be_informed/fuel_cell_technology/how_the_technology_works[/A]
Heres an animated thingy showing how the fuel cell works:
[A href="vny!://www.ballard.com/resources/animations/animations/FuelCellLong/index.html"]vny!://www.ballard.com/resources/animations/animations/FuelCellLong/index.html[/A]