President George Bush has set course for the hydrogen economy.
In his State of the Union speech, he announced $1.2 billion in research funding to help America “lead the world in developing clean, hydrogen-powered automobiles”.

The move is part of his promise to find a greener future without adopting what he regards as the damaging restraints proposed by the Kyoto Protocol to cut emissions of greenhouse gases.

But as his speech concedes, the “obstacles” in the way of a hydrogen economy are high.

To say that there are immense technical problems to be solved before the gas can be thought of as a practical, everyday fuel is perhaps an understatement.