Quote:
Originally Posted by Daox
A hydrogen fuel cell combines hydrogen and oxygen to make electricity (to drive an electric motor). Its byproduct is also water.
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So you see what I'm getting to, if these are gases combined separately from independant sources and not derived from water then we are producing water, which will offset the balance in nature. Now 1-100 cars not much impact, but lets say all cars over a hundred years, plus any machinery that is converted and this does become the next big problem, because we cannot simply dispose of water ... It is not a green house gas, but it can turn our planet into a tropical rainforest ... LOL