The 2015 spill damaged the Animas and San Juan rivers, and Colorado wildlands are still paying the price.
Michael Booth is a Colorado Sun reporter covering health, health policy and the environment.
Email: firstname.lastname@example.org Twitter: @MBoothDenver
Boulder company puts steelmaking on a greenhouse gas diet with low-carbon iron
Electra is patenting a low-temperature iron-making method that can also clean up discarded ore piles, with backing of Colorado congressional delegation.
Colorado is banning pesticides that hurt bees. Here are other ways people can help the keystone species.
A new restriction on chemicals sold at garden centers could help restore a beleaguered family of pollinators.
Suncor says PFAS pollution spikes near Commerce City refinery may be coming from higher up Sand Creek
Colorado water quality regulators say high Suncor levels of “forever chemical” outflows did not raise South Platte River contamination
Suncor refinery has another hazardous chemical leak, polluting Commerce City air
Colorado regulators warn the sulfur dioxide emissions could last, and urge neighbors to consider precautions.
Suncor “forever chemicals” in metro Denver creek appear to spike
Firefighting foam from recent accidents is suspected, while state has delayed action on a renewed pollution discharge permit
Colorado could ban the sale of gas-powered mowers and blowers beginning in 2025
Regional air quality leaders say such a dramatic move would be one way to get real ozone cuts by 2026, when EPA demands kick in
Colorado House tosses some of the toughest parts of bill cracking down on air pollution permits
Clean air advocates still laud the measure as an ozone crackdown, while oil and gas industry vows to keep fighting
Colorado has first case of deadly, devastating bat disease
White-nose syndrome found in a Yuma bat species near La Junta, as state officials warn of spread that has severely damaged populations elsewhere.
Colorado greenlights California-style clean trucks mandate in air pollution fight
Dealers must add clean electric medium and heavy trucks for ‘27 model year, and switch to low-NOx scores in fossil fuel engines