EPA announces Colorado-based office dedicated to cleaning up abandoned mines
The Office of Mountains, Deserts and Plains will take charge of remediating abandoned mine lands, including the Gold King Mine in southwest Colorado
Opinion: How to use ventilation and air filtration to prevent the spread of coronavirus indoors
Once the virus escapes into the air inside a building, you have two options: bring in fresh air from outside or remove the virus from the air inside the building.
EPA settles lawsuit with Utah over Gold King Mine spill
Utah’s lawsuit was one of several legal claims filed over the incident, but no other settlements have been reached, the EPA said Wednesday
Many hoped the Gold King Mine spill would bring change. Five years later, they’re still waiting.
A congressional fix for abandoned mines remains elusive and clean up around Silverton has moved at a “snail’s pace.” Experts say the disaster shed light on problems, but didn’t drive change like they thought it would.
E. coli fouls 100 Colorado waterways. But managers aren’t sure how big the threat is to people playing in streams.
The Colorado Department of Public Health and Environment has registered more than 100 waterbody segments on its impaired waters list due to alarmingly high E. coli levels
Colorado, Denver join 25 other cities and states in suing EPA for relaxing clean-car rule
The EPA’s final rule also could impact Colorado’s zero-emissions mandate
Colorado sewage treatment plants are examining your poop for coronavirus clues. Seriously.
Humans begin to shed coronavirus in their feces within three days of infection, which could provide a heads up on outbreaks. At least three Colorado water treatment systems are studying poo for warning signs.
Colorado lawmakers wanted to tackle the state’s PFAS problem. They are taking more of a baby step.
A bill to regulate harmful “forever chemicals” that contaminate groundwater was chopped in half during its first public hearing
Trump administration’s effort to roll back NEPA environmental law draws ire at Denver hearing
NEPA requires federal agencies to determine if a construction or commercial project would harm the environment or wildlife. It gives the public the right of review and input.
Judge blocks Trump from easing energy rules in western U.S. citing sage grouse
The temporary restraining order issued Wednesday by a judge in Boise, Idaho, means the administration for now must fall back to more stringent rules adopted under former President Barack Obama
EPA set to end California’s ability to regulate fuel economy, which could impact Colorado
A dozen states -- including Colorado -- and the District of Columbia also follow California's fuel economy standards
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
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"
Auto dealers say electric car mandate — a cornerstone of Colorado’s clean air quest — is a threat to tradition
Lowering emissions is a top priority in Colorado, but a look at how dealerships make money — parts, upgrades and financing — shows why dealers aren't happy about the plan to get more zero emission vehicles on the road
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
Court upholds Trump move to drop mine pollution rule forcing companies to show their clean-up ability
The mining industry has a legacy of bankrupt companies abandoning polluted sites and leaving taxpayers to cover cleanup costs.
Opinion: Lakewood voters don’t deserve praise; they deserve condemnation
Front Range air quality is terrible, but Colorado’s efforts are showing some improvement in ozone pollution
A slate of new laws is expected to speed up air-quality improvements, but Denver still hasn't met standards that the EPA set more than a decade ago
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
Colorado’s ban on banning plastics has cities’ plans to outlaw single-use bags and straws in limbo
A little-known Colorado law written to protect recycling stands is in the way of cities that want to outlaw straws, plastic grocery bags and Styrofoam containers