tw, I hate to rain on your parade, but Sydney Buses (ie. NSW State Government buses), have been using hydrogen fuelled buses for, I think, two years. I cannot find a link on their website, but I think they are working OK. I am also not sure of how many there are - I know it is only a small number. At least it is a start. I'm not saying it is the final solution.
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History is a great teacher; it is a shame that people never learn from it.
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