Even though I have a personal fascination with fuel cells and even incorporate a fuel cell activity into my lab manual, I think it is a waste of resources to invest in the "hydrogen economy". This article does a great job of summarizing the economic and technological hurdles of using hydrogen as a major transportation fuel. First, it utterly demolishes the myth that hydrogen is a "green" fuel since the only practical source of hydrogen is natural gas. Second, it shows how lithium batteries ar...
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