Colorado
It took 50 years but Colorado finally met federal standards to lower carbon monoxide pollution
Five Colorado cities hit a benchmark for reducing carbon monoxide in the air and now Colorado will ask the Environmental Protection Agency to release it from federal oversight for monitoring those emissions.
It would be the first time in nearly 50 years that Colorado would not be under federal oversight for carbon monoxide emissions that largely were caused by heavy rush hour traffic and cars made without catalytic converters. On Thursday, the Colorado Air Quality Control Commission voted to remove federal oversight and repeal monitoring requirements. The Environmental Protection Agency must approve the plan.
“Colorado experienced high levels of carbon monoxide pollution in the 1970s and 1980s, and this milestone shows how far we’ve come in protecting and improving air quality for all Coloradans,” commission chairman Patrick Cummins said.
In the 1970s, Colorado Springs, Denver, Greeley, Longmont and Fort Collins were plagued by high carbon monoxide emissions, mostly from automobile exhaust. Throughout the decade, the region exceeded federal standards for carbon monoxide more than 100 times with most of those violations happening during daily rush hours.
Those cities were placed under Environmental Protection Agency oversight to reduce carbon monoxide, an odorless, tasteless gas that can cause headaches, dizziness, nausea and chest pain, and can exacerbate pre-existing conditions such as heart diseases.
Colorado was able to reduce carbon monoxide in the air as more automakers installed catalytic converters in cars and trucks and by using gasoline that burned cleaner. The state also started requiring auto emissions inspections.
In 1999, the state hit the federal standard for carbon monoxide emissions but it was required to stay in compliance for 20 years. It is now 80% lower than the federal standard and has stayed that way, allowing the federal oversight to be relaxed.
But that doesn’t mean the Denver Metro area and northern Front Range are in the clear. Nor will it stop finding ways to reduce carbon monoxide pollution, which also is created by oil and gas production.
The region is still considered in severe violation of National Ambient Air Quality standards for ground-level ozone pollution and measures continue to be in place to reduce nitrogen oxides and volatile organic compounds—the two ingredients that form smog on hot summer days.
Still, commissioners found the success in reducing carbon monoxide encouraging.
“Hopefully, it will inspire us to tackle the outstanding challenges that we have,” Commissioner Elise Jones said. “We can see that it is possible to achieve them.”
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Colorado
Colorado weather: Severe thunderstorm watch active for Eastern Plains
Severe thunderstorms may bring tornadoes, hail the size of tennis balls and winds up to 70 mph to Colorado’s Eastern Plains on Saturday afternoon, National Weather Service forecasters said.
A severe thunderstorm watch is active for Logan, Morgan, Phillips, Sedgwick, Washington, Weld and Yuma counties until 9 p.m., forecasters said in an alert.
A severe thunderstorm watch has been issued for parts of Colorado, Nebraska, South Dakota and Wyoming until 9 PM MDT pic.twitter.com/XNece63Mjw
— NWS Boulder (@NWSBoulder) May 30, 2026
Communities could see vehicle damage from hail and damage to roofs, siding and trees from wind, forecasters said.
This is a developing story and may be updated.
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Colorado
Attorney General Phil Weiser’s underdog campaign for Colorado governor
Colorado
Congress looks to help fund new control tower at growing Northern Colorado airport
As Weld County and Northern Colorado continue to grow, leaders at the Greeley-Weld County Airport are preparing for an expansion they say will position the facility as a major transportation and economic hub for the region.
Airport director Cooper Anderson said the airport has reached a point where additional growth on its current footprint is no longer possible.
“We have reached our capacity, here, as far as growth on the south side of the airport,” Anderson said.
The airport is now developing land northeast of its existing facilities to accommodate larger aircraft and future aviation services.
“We needed to find a new area to expand and allow larger corporate jets, and eventual charters and commercial service down the road,” Anderson said.
Construction is already underway or completed on several infrastructure projects, including expanded taxiways and sites for future hangars. Anderson said the area being developed was farmland just a few years ago.
“It used to be corn fields, but since then we have ran water, sewage and gas is coming next week,” Anderson said.
The expansion effort has been supported by a combination of local and federal funding. Anderson noted that approximately $850,000 in federal funding was previously secured to develop a master design and long-term vision for the airport, with local money helping execute the plan. Additional federal tax dollars in recent years also helped fund taxiway expansion projects that have prepared the airport for future growth.
Now, Colorado leaders in congress are seeking millions more in federal funding to continue that momentum.
Rep. Gabe Evans, who represents Colorado’s 8th Congressional District, said the airport plays an important role in one of the nation’s busiest aviation corridors.
“The northern Front Range of Colorado is one of the densest airspace systems in the nation,” Evans said.
Before entering Congress, Evans served as a Black Hawk helicopter pilot out of Buckley Air Force Base and frequently flew throughout Northern Colorado. He said improvements at the Greeley airport would have benefits extending well beyond Weld County, noting other airports are overcrowded to the point of causing some nearby residents to complain of sound.
“It really does impact the entire Front Range,” Evans said.
Evans is working to secure additional federal funding that would help construct and staff an air traffic control tower in Greeley while supporting continued infrastructure improvements.
“When those bills are passed and sent to the president’s desk, writtten into those bills as a line item is several more million dollars to continue to expand the infrastructure at the Greeley airport,” Evans said. “So you can actually start to bring business flights into the Greeley airport and pull a lot of that traffic off of some of the overburdened airports in the metro area.”
Anderson said federal support demonstrates broad confidence in the airport’s future as a hub for business and travel.
“Having the addition of Congressman Evans’ office, and their congressional funding, I think shows how much everybody believes in this,” Anderson said.
That confidence is already attracting attention from the private sector, Anderson said, with major companies expressing interest in locating operations at the airport.
“Greeley’s population is booming. Weld County’s population in general is growing,” Anderson said.
Airport leaders view the expansion as a way to support economic development across the region.
“By us growing, and expanding our services, we are also helping the city of Greeley, Weld County and surrounding Northern Colorado communities and being able to grow economic opportunities for them,” Anderson said.
As the airport prepares for future growth, officials have also upgraded emergency response capabilities. The airport recently acquired two fire trucks that will improve its ability to respond to incidents involving larger aircraft. The vehicles also allow firefighters to use newer, non-toxic firefighting foam, replacing older products that posed environmental concerns.
Airport officials say those improvements will help ensure the facility can safely accommodate larger aircraft and increased traffic in the years ahead.
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