America’s next big clean energy resource could come from coal mine pollution – if we can agree on who owns it

Coal mines are notorious sources of acid mine drainage, but the orange sludge that threatens water supplies and wildlife also contains valuable rare earth elements.

America’s next big critical minerals source could be coal mine pollution – if we can agree on who owns it

Coal mines are notorious sources of acid mine drainage, but the orange sludge that threatens water supplies and wildlife also ...