Sulfide-ore mining for copper, nickel and other metals in the United States has a flawless environmental record—meaning that a perfect 14-of-14 operating mines (representing 89 percent of U.S. copper production) were found to have released toxic contaminants via accidental releases such as pipeline failures, tailings dam spills, water treatment failures and seepage into groundwater supply.
No worse place for a mine
by Ted Williams - Thursday, May 14th, 2020