Environmental Protection Agency

Environment Primary category in which blog post is published

In a twist, Colorado asks the EPA to lower the state’s air rating from “moderate” to “serious”

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"

Environment Primary category in which blog post is published

Aurora spent $34 million on water from a toxic mine. It’s not as crazy as it sounds.

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

Environment Primary category in which blog post is published

A tiny garden in Boulder is showing signs of stress from smog. The scientist behind it is thrilled.

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

Environment Primary category in which blog post is published

Denver, northern Colorado fall short on EPA clean air rules

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

Environment Primary category in which blog post is published

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.

Environment Primary category in which blog post is published

Chemical contamination from 7 Colorado coal-fired power plants found during groundwater monitoring

Local plants vow to minimize coal-ash contamination to meet new EPA rules; report finds cases much worse in other states