> >especially the shuttle - reckoned to be a wizard little
> >polluter all on its own
>
> Yeah, makes lots of steam burning all that H2 and O2 doesn't it ?

Well, some people think there's room for improvement

http://www.esa.int/export/esaCP/ESAM1TPZ9NC_Expanding_0.html

AFAIK the solid fuel boosters use around 1000 tonnes
of ammonium perchlorate, and cause a mini ozone hole
whenever they are launched

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