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Scientists Call for New Sources of Critical Elements
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www.nytimes.com/...19rare.html
rare
earth
elements
metals
china
renewable
energy
green
shared by
Felix Gryffeth
on 19 Feb 11
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Earth-Friendly Elements Are Mined Destructively - NYTimes.com
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www.nytimes.com/...26rare.html
mining
environment
china
economy
economics
rare
earth
technology
green
shared by
Felix Gryffeth
on 16 Jan 10
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Europe Moves to Recycle Rare Earths
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www.nytimes.com/...28rare.html
rre
rare
earth
metals.
elements
recycling
green
shared by
Felix Gryffeth
on 29 Jan 11
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