Montana Residents Ask Supreme Court To Allow Cleanup Beyond Superfund Requirements

This smokestack, leftover from a century of copper mining, spewed up to 24 tons of arsenic per day over an area the size of New York City.

Montana property owners are suing BP to clean up arsenic pollution leftover from mining. The case is now before the U.S. Supreme Court and businesses worry it could open them up to huge new costs.

(Image credit: Nora Saks/Montana Public Radio)