Boulder and Boulder County filed the lawsuit seven years ago, seeking to hold Suncor Energy and ExxonMobil accountable for ...

A new study shows climate change is melting glaciers and permafrost in the Mountain West. Researchers say this can trigger ...

The Denver Water Plan entails increasing the height of Gross Dam from the current 340 feet to 471 feet and expanding the ...

Concerned about pollution and health effects at a time when the feds are deregulating, cities and counties are using lawsuits ...

In a 5-2 decision, the Colorado Supreme Court on Monday upheld a lower court’s ruling denying oil producers attempt to ...

Climate change solutions might be lurking in the dark recesses of your home, according to microbiologist James Henriksen, and ...

ABC News' Dr. Tara Narula breaks down a new report on how climate change is intensifying allergy season. Water recycling can lessen the burden on the Colorado River Basin, but just 26% of treated ...

From reproductive rights to climate change to Big Tech ... the Environment Department’s chief plant health officer, said: “Colorado beetle poses a significant threat to plants and the wider ...