DENVER, Colorado, Nov. 22 -- The Colorado Department of Public Health and Environment issued the following news release on Nov. 21, 2025: * * * Colorado strengthens air quality standards to drive 50% reduction in ozone-forming pollution from upstream oil and gas operations The Colorado Air Quality Control Commission has approved new measures that will drive a 50% reduction in air pollution emissions that form ground-level ozone pollution from upstream oil and gas operations by 2030, compared  more PR