The answer to hydrogen safety is storing it as WATER. Not as pure hydrogen gas!!!
For example: Instead of separting the hydrogen from water in a big factory and transporting the un-safe hydrogen to "fill" stations, the hydrogn can be produced in the car it's self!
Fill the tank with water, use an elctrolysis device in the vehicle that uses electricty to strip the hydrogen from the oxygen in the water and then combust the hydrogen AND the oxygen (plus outside air) inside the motor to propel the vehicle. The by product is heat, water and motion.
Theoretically this process could be very efficient because the byproduct of the combustion (water) could be re stored and re stripped in the electrolysis device to be reused.
The down side is water is heavy and a lot of the energy being produced by the motor will be used to create electricity to power the elctrolysis device.
The link below is of a hybrid: gasoline/hydrogen car using some of these principles and with twin turbos makes over 450hp! You fill it up with water and gasoline. The technology just needs to be explored and researched to reduce costs.
http://www.hybridcars.com/fuels/hydr...car-25231.html
I worry about this concept though because instead of using oil to power our vehicles, we would be using the most vitale resource we have, WATER! We can still survive if we deplet the oil supply, but if we use all the fresh water in dry desert areas or drought stricken regions to power vehicles, how do we drink, and cook, and survive?
I believe climate change is BS but I like the idea of building an infastructure deigned without the use of foreign (Idiotic and dangerous) regimes oil supplies! I just wish the present administration would let the FREE MARKET system do this and stop trying to force it with trillions of tax money we don't have.