RE: Global heating and stupid greens/U-235

["McCormick, Luke I NWD02" <g6hxxlim@nwd02.usace.army.mil>]

At least from the present US standpoint, I'm sorry to disagree, but citing
Alan Walthar in America the Powerless, " ...nuclear energy, exploited in its
present form does not represent an exceedingly long-term source of
energy.... available feedstock will fuel the current generation of fission
reactors for only decades, not centuries."  
The long discussion points out the US decision against reprocessing as the
major limitation. 

Luke McCormick
g6hxxlim@ndw02.usace.army.mil

-----Original Message-----
From: Bjorn Cedervall [mailto:bcradsafers@hotmail.com]
Sent: Friday, October 27, 2000 3:38 AM
To: Multiple recipients of list
Subject: Re: Global heating and stupid greens/U-235


>One final thought, or question, does anyone know what, or how long we would

>be able to depend on nuclear power (how long our U235 would last, afterall,

>there is a limited amount)?  This way one can determine how long we have to

>get technology up to speed to save humanity.
---
Some considerations made 20 years ago said "about 500 years" (formally it 
must be the time integral of a capacity variation) if we rely mainly on 
fission of U-235 - whereas a working breeder program would bring us far 
beyond that (10 000 years??). This is the scientific view of resources - 
like having a bucket that we are emptying until the last atom. The economic 
view is different because the available resources are price dependent. As 
the price goes up lower ore concentrations of U-235 (or whatever) may become

profitable. (there is also the Th-232 pathway)

My personal comment only,

Bjorn Cedervall  bcradsafers@hotmail.com
http://www.geocities.com/bjorn_cedervall/

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