A nickel-based electric-vehicle battery can require up to
of nickel. Almost
of copper go into one wind turbine. Demand for cobalt
by 2025. These are some of the estimates increasingly used to prop up sulfide mining proposals in Minnesota, home to deposits of these so-called “critical minerals” used for renewable energy. Mining companies claim they can supply a safe and reliable source of these raw materials to electric carmakers and other renewable-energy producers.But at the same time sulfide mining proposals are marketed as “climate action,” the industry remains one of the country’s
, according to the EPA. No sulfide mine has ever succeeded in keeping its acidic pollution out of the environment. Acid mine…