https://www.cbc.ca/news/canada/sudbury/
Metal-eating bacteria could help extract $7B-$10B worth of minerals at Copper Cliff
The key to supplying the automotive industry with enough electric vehicle batteries may rest in a toxic eyesore: Sudbury’s vast tailings ponds.
Tailings are the waste material left over from ore extraction processes — often mixed with water and stored in ponds. But for several years, the potential for leaks of toxic substances into the surrounding environment has raised concerns about these tailings and questions about what, if anything, can be done with them.