Federal court rejects ranchers’ lawsuit to pause Colorado wolf reintroduction
The decision clears a path for Colorado to release its first batch of wolves as soon as Monday.
By Sam Brasch
Colorado sets new regulations on gas-powered lawn tools. Clean air advocates say they don’t go far enough
The rules require public entities to transition to electric tools, but won’t affect individuals or commercial landscaping companies.
By Sam Brasch
Colorado could reintroduce wolves as soon as next week — if it’s not stopped by a federal court
Colorado Parks and Wildlife is on track to dart and capture up to 10 gray wolves in Oregon starting Sunday, but a lawsuit could put a pause on the voter-mandated plan.
By Sam Brasch
Why the future of wave energy runs through Colorado
A new tank at the National Renewable Energy Laboratory in Arvada could help humanity harvest the immense power of the ocean.
By Sam Brasch
In a reversal, Xcel Energy won’t use carbon offsets or certified natural gas to clean up its gas system
The revised plan is a win for environmental groups but it doesn’t clarify how the state’s largest utility plans to meet legally mandated climate targets.
By Sam Brasch
Why is Colorado off track to miss its first big climate goals? Short answer: cars
The state is making a lot of gains by shifting away from coal and cleaning up drilling, but slow progress on cutting planet-warming emissions from transportation is derailing its climate goals.
Colorado is ready to help pay for geothermal heating and cooling systems
A new state grant program will award $12 million for projects to harvest energy below the earth’s surface.
By Sam Brasch
Feds approve Colorado’s plan to reintroduce wolves — and kill them in some cases
By designating gray wolves as an “experimental population,” the U.S. Fish and Wildlife Service has cleared a path for Colorado to release the predators ahead of a Dec.
By Sam Brasch
Xcel Energy faces new pressure to leave the American Gas Association
A coalition of environmental and racial justice groups say Xcel Energy’s membership in a powerful fossil fuel trade group undermines its commitment to clean energy.
By Sam Brasch
Why Colorado energy bills should be lower this winter
The drop is welcome news, but it’s unclear if it will be to help many customers catch up after falling into debt last year.
By Sam Brasch
Colorado built a park over I-70 to contain pollution. Is the air safe to breathe?
CPR News tested the air quality at the Central 70 Cover Park to see whether it reduced pollution.
By Sam Brasch
How we measured air quality at the I-70 cover park in Denver’s Elyria-Swansea neighborhood
The park was built to reduce pollution levels in Elyria-Swansea. Our reporters tested whether the air quality is actually improved.
Why do small airports still use fuel containing lead?
People living near Rocky Mountain Metropolitan Airport in Broomfield won a major victory this month. The facility announced it would eliminate leaded gasoline by 2027, three years ahead of a federal target date.
By Sam Brasch
Colorado loses bid to build a federally funded regional hydrogen hub
The federal government funded seven regional projects across the country, but it rejected a multi-state coalition in the Rocky Mountain West.
By Sam Brasch
Colorado already has statewide e-bike rebates. It’s now launching grants to help communities start their own
The state wants to help a hundred local e-bike programs bloom.
By Sam Brasch
Xcel Energy delays project to deliver hydrogen to natural gas customers near Hudson, Colo.
Xcel says mixing hydrogen into the natural gas supply is a way to cut climate-warming emissions. Residents and environmental groups aren’t buying it.
By Sam Brasch