DULUTH, Minn. (AP) — Federal regulators have issued final regulations aimed at reducing pollution from taconite processing plants that causes haze over northern Minnesota’s wild areas including ...

The rule is expected to cut about 33 percent of the neurotoxin each year, thereby reducing deposits on Midwest lands and waters. EPA has finalized the nation’s first-ever limits on emissions of ...

DULUTH -- Cleveland-Cliffs agreed to pay a $50,000 penalty for air quality violations at its United Taconite processing facility in Forbes, where, as part of the settlement, the mining company is also ...

NewRange is clearing out the quarter-mile-long concentrator building, which it hopes to use as a processing plant for a copper-nickel mine. But several key permits have been revoked or are on hold. A ...

DULUTH — President Donald Trump is giving Minnesota’s taconite iron ore mines two more years to comply with a U.S. Environmental Protection Agency mandate to reduce their mercury emissions — a rule ...

WASHINGTON — The Iron Range’s taconite industry is pushing back on new federal rules that would limit mercury emissions released by pellet plants. U.S. Steel and Cleveland-Cliffs, the two companies ...

DULUTH — A plan by Minnesota’s largest smokestack industries to reduce mercury emissions is set to be unveiled this week before the Minnesota Pollution Control Agency’s board in St. Paul. The plan, ...

ISHPEMING, MI — Two iron ore mines and a manufacturing plant in Michigan are among dozens of facilities nationwide which are being exempted from stricter new air pollution rules through a series of ...