View Single Post
  #48  
Old May 17th 06, 12:34 AM posted to sci.space.policy,sci.space.history,sci.space.station
external usenet poster
 
Posts: n/a
Default ...Lesson for Nasa! US Airmail and Aviation


"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 :-)