Haze and smog shroud the mountain view behind the Denver City and County Building, as seen on Nov. 5, 2019. The state Department of Public Health and Environment issued an "action day" advisory for poor visibility for the day, but the overall air quality was labeled as "moderate." (John Ingold, The Colorado Sun)

Colorado counties sue state over new air-quality regulations

Garfield and Mesa counties joined seven other counties in the lawsuit against the state Air Quality Control Commission, Air Pollution Control Division and Department of Public Health and Environment

Environment Primary category in which blog post is published
Sun Investigation Primary category in which blog post is published

Coronavirus-related deaths among Colorado nursing home, senior-care center residents rise to at least 64

The Colorado Department of Public Health and Environment is still not releasing the fatality data, citing jurisdiction and privacy issues

Coronavirus Primary category in which blog post is published

Coronavirus may have reached Colorado as early as January, weeks before the state had the ability to test

The Colorado Department of Public Health and Environment says it wasn’t until Feb. 27 that the state could test people for COVID-19. “We were really in a reactionary mode instead of being able to be in front of it,” one top official says.

Coronavirus Primary category in which blog post is published

Coronavirus is forcing a whole new social contract on Colorado’s city sidewalks and suburban open space

What’s the new social etiquette for dog-walking and trail running? Here are some answers from park managers and health officials.