Environmental Protection Agency
Air quality improved slightly during the stay-at-home order. But Colorado still has a serious pollution problem.
Officials have until June 2021 to meet a ground-level ozone compliance deadline set by the federal Environmental Protection Agency.
After decades of negotiations, restoration efforts on Colorado’s heavily diverted Fraser River are showing signs of successBy Moe Clark Environment Primary category in which blog post is published
Colorado attorney general taking hard look at Trump administration’s clean-water regulations rollback
Democrat Phil Weiser says if the Environmental Protection Agency rolls back the Waters of the United State rule beyond a certain point, he could take legal action
The EPA will hold a Friday hearing on whether to lower the ozone status of Denver and eight other northern Colorado counties from "moderate" to "serious"
The plan to tap the aquifer above Park County's London Mine could provide a template for how thirsty cities can draw on new sources of clean water, while also cleaning up polluted mine runoff
Four types of plants growing near the entrance to NCAR are part of a nationwide network of gardens where citizen scientists and climate researchers collect data about the impact of ground-level ozone
The move was expected after Democratic Gov. Jared Polis said in March the state wouldn't ask for an exemption based on pollution drifting into Colorado from China and elsewhere
Controversy over Denver Water’s Gross Reservoir expansion offers a glimpse into water woes in the West
Raising the 55-year-old dam near Boulder is essential to keep a stable water supply in a changing climate, utility says. Residents insist conservation could be just as effective.