Colorado lawmakers in 2025 took on a wide variety of environmental and climate change issues, from the definition of clean energy to the fate of roaming bison.

Those are just some of the Colorado projects on life support ... Lee Zeldin has called environmental justice “an excuse to fund left-wing activists” rather than fix actual environmental issues.

The Environmental Protection Agency on Wednesday signaled it no longer believes Colorado can mandate utility companies close ...

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.

While the Trump administration rolls back environmental regulations, Colorado is ensuring the state will continue to address climate change. On Wednesday, The Environmental Protection Agency (EPA ...

National and Colorado environmental groups expected new attacks on the Endangered Species Act, long critiqued by business and extraction interests, but did not expect such a consequential move in ...

Pine beetle kill is an environmental impact along large sections of the Colorado Trail, like seen here on Segment 17 from Sargents Mesa to Hwy 114 in central Colorado.

The Harris campaign has said she would not ban fracking on federal lands, which includes parts of Colorado, but that's not what she said in a 2019 CNN town hall.