Sierra Club volunteers have been active in Minnesota mining issues since the founding of the North Star Chapter in 1968.
Sulfide mining, a toxic type of mining never done before in Minnesota, is risky to our environment, workers and communities. Mining sulfide rock releases acid and toxic metals that pollute rivers and groundwater for hundreds of years, long after the profits are spent and the products buried in landfills.
Where the Sierra Club Stands: Let’s ask for proof, not promises from promoters of metallic sulfide mining in Minnesota’s northwoods.
A kind of mining new to Minnesota has significant long-term risks of pollution and economic instability. This industry has a poor track record of stewardship and integrity. But solutions such as requiring proof it has been done without harm in a similar climate; protecting pristine natural areas from disturbance; not mining where perpetual treatment of drainage pollution is required; and demanding secure and significant financial assurance for reclamation can help keep our waters clean for future generations.