Hi Tom! :-)

 TW> Here is the Study. Sorry it was Cal Tech instead of MIT. This is an
 TW> article published in Nature Magazine.
 TW> Hydrogen is NOT the big Answer touted by the Anti-Nuclear Crazies, 
 TW> and others. 
The study itself claims that the advantages of hyrogen fuel likely
outweight the disadvantages.

Another interesting question would be whether the ozone layer could be
replenished in some way. It's not that hard to artificially produce ozone,
or is it?

Ciao
Pascal

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