Another smoggy summer pushes the Front Range closer to a federal ozone crackdown
Some air quality advocates say it’s time for the state to ask the U.S. EPA to take preemptive action on the stubborn pollution problem.
By Sam Brasch
Colorado is second in the nation in electric vehicle adoption, thanks to affordable cars and generous incentives
More than 23 percent of new cars registered in the state this year were either battery-electric or plug-in hybrids.
By Sam Brasch
How the first ‘carbon-positive’ hotel in the U.S. is handling a dead tree problem
The developer behind Denver’s eye-catching Populus hotel claims it planted tens of thousands to offset its climate-warming emissions. The project highlights the challenges of counting on the forest to cancel emissions.
By Sam Brasch
Louisville launches the nation’s first EV garbage and recycling fleet
The fleet of four battery-powered trucks started roaming the city’s neighborhoods on Oct. 1.
By Sam Brasch
Colorado helped invent community solar. Here’s how it lost the lead and plans to win it back
Colorado came up with the idea for community solar gardens almost 15 years ago, but other states have gone further faster.
By Sam Brasch
Meet the electric baker trying to make Pueblo the home of climate-friendly challah bread
Elishevah Sepulveda is renovating an old filling station into an all-electric, kosher bakery.
By Sam Brasch
How scientific road trips through metro Denver found unexpected sources of air pollution
By a mobile lab in Commerce City and North Denver, CU Boulder scientists identified an unexpected source of urban air pollution.
By Sam Brasch
Why are green chiles roasted?
It’s easy to store and peel a fire-roasted chile pepper, but the origin of the annual Colorado tradition isn’t just about culinary convenience.
By Sam Brasch
Colorado plans to release up to 15 additional wolves this winter
The next stage of the controversial restoration program comes after the state failed to protect its first batch of wolves — and failed to protect livestock from the predators.
By Sam Brasch
Why electric restaurants could be the key ingredient for cities trying to ditch fossil fuels
The climate impact of natural gas cooking has put chefs at the center of a red-hot local climate battle.
By Sam Brasch
Colorado’s cash-for-gas-guzzlers program is a lot more popular than expected
The program has provided over 1,300 rebates to help low-income drivers purchase electric vehicles.
By Sam Brasch
Swiss solar company cancels plans for Colorado Springs factory
Meyer Burger has pulled the plug on a new solar cell manufacturing plant, which was expected to create more than 350 jobs in Colorado Springs.
By Sam Brasch
Denver’s public housing authority just took its first big step away from natural gas
A pilot project replaced gas furnaces and water heaters with all-electric heat pumps at a public housing project in west Denver.
By Sam Brasch
New videos show three pups born to Colorado’s reintroduced wolves
The footage confirms the state’s wolf restoration effort is making progress, but it’s also driving growing concerns among local ranchers.
By Sam Brasch
Colorado households are already benefiting from federal climate investments. Expect more discounts this winter
Two years after Biden signed the Inflation Reduction Act, the landmark climate bill is now helping residents pay for green energy projects.
Colorado approves plan to drill new oil and gas wells near Aurora Reservoir
Residents are worried the project could disturb a nearby Superfund site and contaminate a local source of drinking water.
By Sam Brasch