Hydrogen fuel cell technology alone is not going to prove a sustainable response to climate change and fossil fuel over-reliance. Fuel cells store energy that must still come from some other source, and if this is a coal burning power plant, the pollution and carbon emissions have been deferred and/or moved, but not eliminated. Below is a report on linking of solar energy with fuel cell technology - much more promising technologies in terms of energy dependence and ecological sustainabiity. It is interesting though perhaps not surprising that University students and not major car companies have made this breakthrough.

BBC NEWS | World | Asia-Pacific | Epic trip for 'alternative' car

A car that runs on just hydrogen and solar power has completed a journey through Australia - the first crossing of a continent for a car of this type.