http://www.popularresistance.org/toyota-prius-not-so-green-after-all/

Rare earths are a group of 17 elements found in the earth’s crust. They are used to produce electronics for cell phones, wind turbines, and car batteries. Rare earths are notorious for their environmentally costly extraction process, with over 90 per cent of the mined raw materials classified as waste. Toyota has guaranteed purchase of 100 per cent of rare earths extracted from the proposed Kipawa mine, for use in their hybrid car batteries, replacing a portion of Toyota’s supply currently sourced out of China.

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