pollution

Additional sampling at the Smurfit Stone mill site will likely start with the groundwater, sludge and wastewater areas, leaving the Clark Fork River and its fish and wildlife for later.

Colorado leaders signaled their intent to take a more aggressive approach to cutting ozone pollution from the oil and gas industry.

Wastewater discharge from coal-fired steam electric plants contains toxic pollutants that can stay around for years and contaminate drinking water sources.

The U.S. Environmental Protection Agency is putting $65 million from the Bipartisan Infrastructure Law toward cleanups at three Superfund former mining sites in Montana, the agency announced Tuesday.