Dossier
Colorado counties
Coverage of Colorado counties in the Nexus archive.
- 9 Colorado counties keep soaring above federal ozone limits, risking fresh sanctions
Nine Colorado counties continue to exceed federal ozone limits, risking sanctions. A public health study highlights the human cost of high 2026 ozone levels, with watchdogs urging state action.
- Wildfire southwest of Denver forces thousands to evacuate and destroys more than 160 structures
A wildfire burning southwest of Denver forced thousands to evacuate and destroyed more than 160 structures. Erratic winds pushed the blaze across two Colorado counties.