Rare Earth Elements

Rare Earth Elements

Hank reveals why our love affair with the rare earth elements has a dark side.

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References:
http://washingtonindependent.com/101462/california-mine-represents-hope-…
http://www.nytimes.com/2011/03/09/business/energy-environment/09rare.htm…
http://minerals.usgs.gov/minerals/pubs/commodity/rare_earths/

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