This is a quite nice article. Whenever you hear a stupid environmentalist claim nuclear power is non renewable tell them your plenty satisfied with having energy for a few billion years.

http://www-formal.stanford.edu/jmc/progress/cohen.html

This is exactly why I hate all the talk today about conserving energy. It realy pisses me off because that will only hurt the economy and is totaly pointless. All we need to do is produce the energy in the right way.