Environment

An expert offers tips to great moderate or difficult Colorado trails accessible on a new app.

“I’ll be brutally honest: It absolutely does not matter at all.”

“The Trump administration is completely undermining Colorado’s efforts to cut climate pollution.”

The first round of rulemaking was scheduled to last just a month. A final vote now been postponed until August.

But another weekend closure is coming soon.

An expert offers tips to great easy Colorado trails accessible on a new app.

“The Trump administration is deliberately ignoring broad scientific consensus and using shady math to weaken climate protections.”

“This is about the health of our planet.”

After a couple decades of progress, Colorado’s air quality seems to be backsliding. Who’s to blame?

In the urban canopy, these four are standouts.

Fifty years after he made his list, an update is coming out this summer.

Resilient Denver’s proposed tax would raise $47 million annually to fund the city’s efforts to fight climate change.

Colorado won’t stop issuing drilling permits while regulators implement a major overhaul of state oil and gas law.

Bennet’s plan calls for $1 trillion in federal spending on efforts to reduce greenhouse gas emissions.

The hard work of implementing Colorado’s new oil and gas law is underway, and fractivists and industry groups are once again clashing over new regulations.

Lawmakers and state officials are putting into place a variety of measures to help accelerate the transition to electric vehicles.

The Boulder City Council has authorized the study of “lethal control.”

The idea of fee-based trash-collection system has been around for a decade or more but still hasn’t happened.

HB 1261, which commits the state to a 50 percent cut in greenhouse gas emissions by 2030, is on its way to Governor Jared Polis to be signed into law.

Denver has the 12th-highest levels of ozone pollution out of 228 metro areas studied.

What if Jared Polis and other anti-fracking activists had gotten their way five years ago?

The “Fossil Free” investing movement has picked up steam around the world and in Colorado.