Re: Desperately needed !!!
Totally agree with parissenoor. No real alternative as of right now. All the developing (and generally considered) potential technologies are just not possible. Popular mechanics did the article on this about a month back (said the same thing). You need 3 times the size of car fuel tank for hydrogen gas (and it will be xtremely dangeorus as compared to petrol we use).
There is a this new scientific paper out that says that there is enough wind power available (with current technology) to support the world's need 3 times over (for industrial purposes). As technology progress we can make it about 42 times more efficient. Cars are a v.small portion of fuel being used.