Hydrogen is combustible, and a byproduct of burning it is -- water vapor.
Don't know about you, but if we started burning H we might usher in a era of climate change. Water vapor forms clouds, which might block the sun and lower the temperature.
Someone correct me, about the chemistry, anyway.
your right dave. water vapor is (i think) the #1 proven greenhouse gas. if the reason to switch to H is only for getting rid of Co2 then IMO you could make a problem worse. with hydrogen fusion the only byproduct is helium (an inert gas). fusion will change the world. weve made a fusion reactor using lasers but as of now it takes more energy than it produces. they say in 20 years we will be able to make fusion a reality. the problem with gasoline is that its a very efficient form of energy. so until we can come up with something more efficient gas is going to be king.
I thought California could do with a bit more humidity to grow palms with.
Just condense the water vapour and collect it from the exhaust, mix it with fish and seaweed solution and feed it to your palms. Simple.