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Well... yet another article detailing some of the problems with respect to the availability of the "Rare Earths" required in renewable energy products:


http://news.yahoo.com/s/livescience/20100216/sc_livescience/shortageofrareearthelementscouldthwartinnovation


It's interesting to note that only China allows some of the manufacturing processes that are required to refine some of these rare earths.  Must be some pretty nasty processes...


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