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Posted by Damon Hill on January 27, 2006, 12:52 pm
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psturroc@gmail.com wrote in news:1138202258.435499.251660
@z14g2000cwz.googlegroups.com:
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> Are there any rocket fuels -- existing or potential -- that are less
> polluting than kerosene or hydrogen? If so, are any of them
> economically feasible?
Exactly how polluting are carbon dioxide and water?
There are no practical alternatives to existing chemistries.
If anything, it's not a problem to begin with; these
exhaust products are normal constituents of the atmosphere.
--Damon
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> polluting than kerosene or hydrogen? If so, are any of them
> economically feasible?