Quote Originally Posted by rob101
LPG and CNG are the next step, they have very low emissions, i think people are deluded if they think the hydrogen economy will reduce emissions with present power generation being mostly coal and a ******** amount of energy is required to get hydrogen from water (90% of hydrogen is obtained from fossil fuels anyway)
I concur on that, at least in the middlelong term. LPG injection systems can just as easely take biomethane if at some point it is decided to use this as well. Biomethane would give you two H2O for every CO2, which is closer to hydrogen's 'pollution level' without requiring huge amounts of energy to produce it and without having to heavily modify engines.