The EPA published a notice in the Federal Register that it intends to deny Colorado’s plan to shutter coal-fired power plants ...

The proposed rejection doesn’t stop Colorado from enforcing the plan, but it signals the federal government no longer ...

Environmentalists lamented the agency’s decision, but Colorado officials said it would have little impact on its planned ...

An EPA ruling says Colorado can't require coal plant closures by a certain date, and some utilities may take advantage.

By the timeline the EPA set for burying carbon dioxide from coal and natural gas energy plants underground, or shutting fossil fuel generators altogether, Colorado will already have closed all its ...

This story was updated at 6:25 p.m. EDT. EPA says a state-approved air permit for Colorado’s largest coal mine doesn’t fully comply with the Clean Air Act and regulators there must fix ...

GUNNISON, Colo.—The Environmental Protection Agency has ruled that Colorado’s air pollution permit for Arch Coal’s West Elk coal mine fails to meet Clean Air Act requirements for monitoring harmful ...

The Trapper Mine, scheduled to shutter before 2030, provides coal for the nearby Craig Station in northwest Colorado. The local school district relies on the power plant for about half its budget ...

Emissions rise from the smokestacks at the Jeffrey Energy Center coal power plant as the suns sets, near Emmett, Kan., Sept. 18, 2021. ORLANDO, Fla.—There is “widespread noncompliance” with ...