Carbon Dating (how sweet)

[Jeff Miller <jbmiller@xxxxxx>]

Hello All.

sorry if this is off topic, but it seemed relevent...
I was wondering how accurate carbon dating method is. I got in an 
argument over dinosaur timelines and carbon dating in general. my rival 
said it's inaccurate because the rate of decay in certain radioactive 
elements may not be totally constant, and/or effected by environmental 
factors. this doesn't seem too realistic; i'm supposing that somewhere in 
some lab people are trying to figure out how to _change_ the rate of 
radioactive decay, in order to deal with radioactive waste. you'd think 
if they found something then anyone who seriously used carbon dating will 
know about it. oh well... any help... thanks