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Old May 18th 06, 09:55 PM posted to sci.space.policy,sci.space.history,sci.space.station
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Default ...Lesson for Nasa! US Airmail and Aviation


"Neil Gerace" wrote in message
...

"Henry Spencer" wrote in message
...

Oh, and don't forget the costs of the storage systems you need for wind
and Earth-based solar, and the fact that tidal and geothermal are
cost-effective in only a few particularly favorable places, and the
limits
imposed on fission by uranium supply.



And the fact that most of the world's uranium is found in politically
unpalatable countries, like Australia :-)


Well, you do have to dig Down Under the ground to find it!