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air quality

air quality

Colorado air quality regulators update plan to lower ozone levels and align with EPA standards

The new State Implementation Plan comes as the Front Range anticipates a downgrade in its ozone compliance status

Environment

Denver aims to raise awareness of steadily worsening air quality on the Front Range

Metro Denver has this year recorded the highest number of particulate warning days — the form of pollution exacerbated by wildfire smoke — in at least 10 years.

Health

Air pollution, asthma rates in Colorado’s San Luis Valley are a growing concern

About 14% of San Luis Valley children suffer from asthma, which is a medically significant higher number than the 12% U.S. average. Can monitoring air quality help?

Health

Drew Litton: Colorado’s Cameron Peak infection

Cartoons

Six months after historic Suncor settlement, community around Commerce City refinery still feels “exploited”

The oil company began surveying the community on Wednesday, but continued issues at the refinery have neighbors feeling skeptical

Environment

Opinion: It’s time to talk about Colorado’s unwanted houseguest – air pollution

Opinion Columns

Drafting rules to reduce Colorado’s greenhouse gas emissions may prove even harder because of missing data

The state's Air Quality Control Commission doesn’t expect new rules to be in place for another year

Environment

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

Transportation

There’s a push to increase fines for Colorado polluters and directly help impacted communities

Last year, Colorado legislators pushed for stricter environmental protection. This year, they want everyone to benefit from the solutions.

Environment

Jim Morrissey: Let it snow (cough, cough)!

Cartoons

Colorado regulators approve tougher oil and gas air rules, ending statewide disparity

The regulations would require more frequent inspections for leaks for facilities within 1,000 feet of homes, schools and other public facilities, officials said

Energy

EPA lowers Denver area’s air quality rating to “serious”

The change will force the state to work harder to reduce harmful pollution but also bring tougher and costly regulations for businesses

Environment

Colorado to challenge Trump administration decision ending states’ waiver for stricter vehicle-emissions

The Environmental Protection Agency on Wednesday is set to end a waiver that allowed California and other states to have tighter vehicle emissions rules than ones mandated federally

Environment

Opinion: Why the zero emission vehicle standard matters — and what it means for Colorado

Opinion Columns

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

Colorado commission votes 8-1 to adopt zero-emissions vehicle mandate after three-day hearing

Colorado's adoption of ZEV rule means more electric vehicles will be on sale in the state. Commissioner Tom Gonzales voting against the rule.

Transportation

The fierce debate over Colorado’s new zero-emissions rules includes auto dealers who are meeting future standard

The proposed ZEV rules aren't a fix for Colorado's air-quality problems, officials say. If adopted, nearly 94% of new cars sold in 2030 could still be gas-powered vehicles.

Transportation

As Colorado considers an electric-vehicle mandate, here’s what to expect

Here’s the data behind some of the arguments that will be made as the state considers adopting an electric vehicle policy to improve air quality

Transportation

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

Transportation

Opinion: Let’s not get left behind when it comes to clean cars, Colorado

Now is the wrong moment to hit the brakes on electric vehicles

Opinion Columns
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