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and the bit of hydrogen made with electricity... its about 10% efficient, batteries are 50-90% efficient. (lead or lithium) so you can already see how much power you're throwing away, and even after that, theres the rather poor efficiency of a piston engine or fuel cell to burn the hydrogen back into power or electricity.
and with the poster above, most hydrogen is made by "stripping" LNG so that the carbon ends up as co2, and some of the hydrogen can be collected. again, throwing away tons of energy that could have just as well (or actually, better) have fueled a car.
and with the poster above, most hydrogen is made by "stripping" LNG so that the carbon ends up as co2, and some of the hydrogen can be collected. again, throwing away tons of energy that could have just as well (or actually, better) have fueled a car.
luckily we also have LED's, hp/lp sodium lights, tube lights and the folded-up-tube-light energy saving bulb. (last 2 are actually the same kind of crap as hydrogen, they contain mercury and are thus a real hazard to the environment and peoples health.)
