Smart #mining. https://www.cbc.ca/news/canada/sudbury/mine-waste-critical-minerals-sudbury-mining-innovation-9.7149655

A first-hand look at how technology powered by bacteria is turning mine waste into critical minerals | CBC News
A new research facility in Sudbury, Ont., is testing whether bacteria could help solve two major challenges in mining: How to source critical minerals and what to do with the waste left behind. CBC recently toured the 10,000-square-foot pilot facility to speak to researchers and get a first-hand look at how bioleaching works.