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 ...

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

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

EPA signals opposition to Colorado’s plan to close coal power plants Xcel needs new air permit for Pueblo’s Comanche station even as it plans to shutter the coal-fired plant ...

Colorado may be buffered from Supreme Court's EPA decision 02:21. In this day and age of climate change, a major blow has been struck against the U.S. agency whose very name says its job is to ...

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 ...

Battle lines have been drawn in a fight between oil-producing red states and environmentally-driven blue states over a new regulation by the Environmental Protection Agency. Critics say it is an ...

As Colorado’s governor pursues other means of reducing carbon emissions, the EPA’s Clean Power Plan remains stalled in the courts. Twenty-four states joined forces to sue the federal government in ...

The EPA established national rules for coal ash management and disposal in April 2015, largely in response to a 2008 incident at the Kingston power plant in Roane County, Tenn.

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 ...