So, why do some experts say hydrogen-powered cars are still decades away from mass production?
Should hydrogen-powered cars become widespread, their consumption would greatly increase the demand for hydrogen.
Q. How long before I can buy a hydrogen-powered car?
Potentially, this storage method could be used on vehicles in place of gas fuel tanks for a hydrogen-powered car.
An initiative to try to make hydrogen-powered cars a commercial success has been launched by the UK government and 13 companies.
Mr. Bush's last proposal - and the high point of his presentation - was a commitment to develop a hydrogen-powered car.
Got a hydrogen-powered car, you'll be able to have that choice.
This gas is stored compressed, and can be used later to generate energy or as fuel in hydrogen-powered cars.
When it comes to modern technology, the only working hydrogen-powered cars in the world are to be found in Europe.
The American auto industry certainly seems serious about developing hydrogen-powered cars.