[geeks] Global warming, was Mr Bill?

[Sandwich Maker]

" From: Sridhar Ayengar <ploopster at gmail.com>
" 
" Sandwich Maker wrote:
" > " so it isn't going to be at lethal levels for millions of years.
" > 
" > while the half life of pu-239 is only 24Ky, u-238 [unfissionable in
" > current reactors] is 4.5Gy.  even u-235 half life is 0.71Gy.  and high
" > level 'waste' is essentially pure oxide, and while i admit i don't
" > know the analysis a large percentage has to be u-238; afaik even after
" > enrichment the bulk of the fuel load is u-238.
" 
" But it's the isotopes with low half-lives that make the waste dangerous. 
"   The longer the half-life, the less radioactive.

i would say -more- dangerous, but you're right.
________________________________________________________________________
Andrew Hay                                  the genius nature
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adh at an.bradford.ma.us                       and think what none thought