Tuesday, June 19, 2007

Busting the Hydrogen Myth

I love this long article on the infeasibility of hydrogen as a substitute for gasoline. It looks at theoretical hydrogen economy from start to finish and finds killer drawbacks at every step of the way. It also has bits like this:
Hydrogen is only a source of energy if it can be taken in its pure form and reacted with another chemical, such as oxygen. But all the hydrogen on Earth, except that in hydrocarbons, has already been oxidized, so none of it is available as fuel. If you want to get plentiful unbound hydrogen, the closest place it can be found is on the surface of the Sun; mining this hydrogen supply would be quite a trick.
Unfortunately, this trick is probably the easiest one he lists!

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