Lithium isn't so bad compared with the rare earths like neodymium, used in the permanent magnets in electric motors. I remember seeing a link on this site to a

Lithium isn't so bad compared with the rare earths like neodymium, used in the permanent magnets in electric motors. I remember seeing a link on this site to a report on the lakes of toxic sludge in China that result from neodymium extraction.