Dave,
Seems to me the best alternative we have, or ever will have is the electric motor. We can plug in at home, recharge and run the next day. If only a small percentage of the population, (like me, who only travel short distances to work) would use this technology, we could cut down on a lot of CO2 in the atmosphere. If we can't get Hydrogen to work safely, effectively and cheaply then I think electric cars must be the future.
BP
Yeah - the future - except GM crushed them all... True you have to plug them in, but solar and wind are options that could be looked in too. Even if everyone was electric or hydrogen the energy has to come from somewhere - which is coal, it takes more energy to make hydrogen then it does electricity...in my mind, it's more tangible to keep with the electric until hydrogen becomes more viable - at this point, it really isn't.