environment

Gov. Jared Polis signs an executive order to address a spreading mountain pine beetle outbreak threatening ponderosa pine forests along Colorado’s Front Range.

Invasive zebra mussels have now infested at least 135 miles of the Colorado River, from the Utah border to Dotsero in western Colorado. And if these tiny pests flow into narrow irrigation pipes and tubes, they threaten to spoil the harvest of Colorado's sweetest crops.

Russ Vought, President Donald Trump’s budget chief, called NCAR “one of the largest sources of climate alarmism in the country”

As gray wolves spread across western Colorado, ranchers face new livestock losses and weigh whether range riders can really reduce conflict in rugged terrain.

The Christmas Bird Count returns on December 14, with official counts at Bears Ears, Cortez, and Durango. Volunteers of all experience levels are invited to help track winter bird populations across the region.

A new report warns that shrinking national monuments could endanger drinking water for 13 million Americans by exposing protected rivers and streams to mining and drilling.

The invasive annual grass is rapidly expanding across Wyoming, according to a new study, fueling wildfires and erasing native sagebrush habitat critical for wildlife.

The Arapahoe County Sheriff’s Office says two separate crashes occurred the night Sen. Faith Winter was killed on I-25. A full reconstruction is underway.

Warmer temperatures in November meant that less snowpack accumulated. But storms did increase soil moisture in the Upper Colorado River Basin, making future precipitation more likely to run off slopesides and boost rivers and streams.

A look back at the life of Ansel Adams, the iconic photographer whose work shaped American conservation and redefined landscape photography.