Argument: Hydrogen for fuel cell vehicles is very expensive
Joseph J. Romm, in an interview with Motor Trends: "The high cost of H2 fuel is also a big issue; Americans don't like to pay a lot for their transport fuel. However, you couldn't get H2 delivered to the tank of your car in a useable form today for under about $4 per Kg without taxes--and that's assuming the efficiencies of scale afforded by many, many stations. Plus, that's the price of dirty, fossil-fuel-derived H2. The price of green H2 [that is, produced without the emission of CO2] is currently $10 or more."