Respondents to a survey in Colorado expressed interest in trying cannabis as an alternative to pharmaceutical medications and because they had exhausted other interventions.

People living near oil refineries can often see or smell signs of industrial pollution. Now, a new interactive map aims to help them better understand the potential health impacts associated with those facilities.

Colorado's negotiator, Becky Mitchell, and Nevada's, John Entsminger, spoke to a crowd of policy experts and answered questions from the audience.

After a wildfire, rivers and streams can take years to recover. Native plants and wildlife are often crowded out by invasive species in the aftermath. But in Nevada’s Virgin River watershed, a collaboration between federal agencies and conservation groups is pointing to early signs of recovery.

The microreactor from Antares, a private nuclear technology company, had a successful nuclear fission reaction for the first time at Idaho National Lab. National officials dubbed it ‘historic.'

Coal mines in New Mexico, Utah and Wyoming could go to revived coal plants and be exported through a new port in California.

Wildfire smoke is associated with a growing list of health impacts. New research now ties it to reproductive harm in bulls – a finding with implications for humans.

Longer wildfire seasons can blanket communities in smoke. Summer heat records continue to rise. Drought remains a persistent concern for water supplies, agriculture and ecosystems.

More than 80 places in the Mountain West have been certified by the nonprofit DarkSky. The designation requires steps to reduce light pollution. But it also allows communities to market themselves as stargazing destinations.

The City of Denver along with other Colorado and Idaho counties have passed moratoriums on data center development. Cheyenne, Wyoming, opted to speed ahead.