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More than two dozen states, including Wyoming and North Dakota have sued to stop the Obama administration's Clean Power Plan. Eighteen states, the…

Air quality has long been a concern in Colorado; many might remember the skies back in the 1970s and 80s along the Front Range."Oh, it was horrible,…

Since 2013, researchers have been traveling around the nation’s oil and gas fields, measuring leaks of methane, a potent greenhouse gas.In Colorado,…

Speaking at the White House Monday, President Obama released the final version of the nation's Clean Power Plan. It calls for big cuts of greenhouse gas…

Two studies commissioned by the city of Fort Collins to study the impacts of hydraulic fracturing failed to offer clear answers as to the controversial…

Whether ozone is a pollutant or not depends on where it is in the atmosphere. At high elevations, in the stratosphere, it shields the earth from…

It’s May in Rocky Mountain National Park, but on a mountainside 10,829 feet above sea level, snow is falling. It’s pelting Jim Cheatham, a biologist with…

Researchers from the University of Colorado and the National Oceanic and Atmospheric Administration in Boulder have begun a new study to measure air…

Two studies led by researchers at Colorado State University found that emissions of methane – a potent greenhouse gas – vary widely, and that leaks from…

A coal mine in Delta County announced Wednesday it is laying off 150 workers, over 40 percent of its workforce. The Bowie #2 mine layoffs follow the…