The plan to cut emissions by 30 percent by 2030 attracted crowds to regional hearings this summer, including Denver.
Environmental Protection Agency officials are visiting northwestern Colorado to learn more about how proposed pollution rules for power plants could affect a region where the economy is tied to coal.
Single-engine air tankers are helping firefighters battle a new wildfire in northwestern Colorado.
Firefighters have kept a 32-square-mile blaze from spreading in northwestern Colorado as scattered showers fall in the area.
The Alkali Fire in northwestern Colorado grew to 20,000 acres overnight amid 90-degree heat and erratic winds.
A wildfire burning in Moffat County has grown to be an estimated 8,000 acres on Wednesday and is zero percent contained.
A historic group is fighting to save what it calls a key to the history and founding of Colorado.
U.S. Interior Secretary Sally Jewell is visiting Colorado to learn about efforts by ranchers to help conserve sage grouse.
A bitter cold snap dropped temperatures to near 30 degrees below zero in northwestern Colorado on Thursday, while the rest of the state struggled with freezing weather, ice and snow.
A boycott by hunters opposed to Colorado’s new laws meant to curtail gun violence has failed to materialize.