Colorado Air Pollution Control Division

Policies that weakened oversight of small polluters have been tightened. But they still may have "backdoor exits" one environmental group says.

Air pollution officials wrap up the “ozone year” with a dire look at summer of ‘21 and rising three-year averages, with little hope for better in near future.

A special investigator found a failure to report professional conflict and raised questions about Colorado’s pollution modeling. Kaufman is moved to a newly-created job less than a month later.

An independent investigation commissioned by the Attorney General also says boss of Air Pollution Control Division should have disclosed his prior work for Newmont Corp. when a pollution permit for a Teller County mine came before him.

Influential world health monitor issues strict guidelines calling for steep cuts to ozone and particulate PM2.5 emissions in Front Range counties that saw sharp spikes in both this past summer.

“We can’t keep doing the same thing over and over” to cut oil and gas emissions, strategist says as first-in-the-nation “intensity target” regulation moves on to full hearing in December.

The proposed "intensity target" rule aims to slash carbon emissions from the oil and gas industry by 60%. But the targets are based on data that doesn’t exist.

“The home is the new tailpipe” say Boulder researchers, showing consumer products contribute a big portion of ozone-causing chemicals ruining Front Range air. The state could do something about it, scientists say.

A heat wave spikes ozone levels to “Unhealthy” on the Front Range, and Sun readers have questions. We sought some of the top air experts in the state for your answers.

Colorado has made some progress toward reducing the chemical dangerous to human health. But it will take leaning on automobiles and oil and gas producers to really move the needle.

All of Weld County will now come under tougher oil and gas and vehicle rules to tamp down the dangerous chemical

Automated lockdowns of key gasoline-refining stacks may prevent the white dust clouds that enraged Globeville and Commerce City neighbors and environmental groups.

Colorado’s Air Pollution Control Division wants businesses with more than 100 workers to start charging for parking, provide shuttles from transit stops and allow more working from home.

Colorado officials now say they have withdrawn the 2010 memo as guidance for staff, but whistleblowers say the technical analysis for Suncor uses the same unlawful rules and the permit should be torn up

Refinery neighbors, environmental advocates say pollution controls should come with new Suncor permit

Whistleblowers point to Director Garry Kaufman’s approval of exemptions for Newmont’s Cripple Creek & Victor Mine as clear conflicts of interest that prioritize the industry over public health

Phil Weiser’s office asks for a third-party investigator to assess internal employee complaints that the Air Pollution Control Division ignored the law and falsified data

An independent review required millions in safety shutoff spending to stop refinery leaks, but neighbors and advocates want more emission controls.

While progress to reduce emissions has been made, voluntary commitments and incentives will not be enough to reach our climate goals and protect our Colorado way of life. We need enforceable climate action now.