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 ...

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 ...

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 ...