From Pbs.org: Without rare earth, Copenhagen means nothing. You buy a Prius hybrid car and think you’re saving the planet. But each motor contains a kilo of neodymium and each battery more than 10 kilos of lanthanum, rare earth elements from China.
Green campaigners love wind turbines, but the permanent magnets used to manufacture a 3-megawatt turbine contain some two tons of rare earth……………………………….Full Article: Source