Colorado air regulators shut down oil and gas facility outside Fort Collins due to air pollution and health concerns
A state air sensor sounded the alarm for hydrogen sulfide, a flammable, toxic and dangerous gas that smells like rotten eggs.
Xcel Energy wants to raise rates for a climate-friendly gas system. Customers aren’t happy.
The company says a rate hike would help ensure a reliable, climate-friendly natural gas system. Regulators, environmentalists and customers were skeptical at a public hearing.
The debate over cleaner, pricier gasoline on the Front Range, explained
After decades of failing to meet federal ozone standards, the Front Range could soon be the latest region required to sell reformulated gasoline.
Colorado air regulators demand changes to Suncor’s air pollution monitoring plan
They want more sensors, more emergency alerts and more public air pollution data.
A Colorado program for kids with serious illnesses offers a blueprint for how summer camps can adapt to climate change
The vulnerability of its campers has forced Roundup River Ranch outside Gypsum, Colo. to the cutting edge of climate adaptation.
Colorado’s early wolf reintroduction plans have frustrated environmental groups, so they released one of their own
The coalition says state wildlife officials have given hunters and ranchers too much say over voter-mandated wolf reintroduction.
EPA finds Colorado air regulators issued improper pollution permits, confirming whistleblower reports
The long-awaited review comes in response to complaints from three current and former state air regulators.
Climate-minded homeowners are cutting themselves off from the natural gas system. Where does that leave everyone else?
A recent study suggests a rapid shift away from natural gas could stick lower-income customers with higher bills without proper planning.
They lost their home in the Marshall fire. Here’s where they stand six months later.
The recovery is underway after Colorado’s most destructive wildfire, but fire victims face a long road home.
A Colorado startup wants buildings to suck up carbon, one living concrete block at a time
Prometheus Materials, a Longmont company, has new funding to make bio-cement developed at CU Boulder into carbon-negative building materials.
Xcel Energy has the state’s blessing for a $2 billion power line on the Eastern Plains. Can it convince rural residents?
Local opposition groups claim Xcel Energy is sacrificing local ecosystems in the name of climate action.
Gov. Jared Polis vetoes bill that would have required electric vehicle chargers in new and renovated buildings
While the governor supports an EV-charger build-out, he said the bipartisan bill risked further increasing housing prices.
Cheap, energy-efficient manufactured homes? New federal standards aim for both
The U.S. Department of Energy has issued its first update for factory-built homes in 26 years. It hasn’t satisfied homebuilders or energy-efficiency advocates.
National Renewable Energy Laboratory in Colorado is part of a new effort to move national research centers away from fossil fuels.
U.S. Energy Secretary Jennifer Granholm announced the $38 million Net Zero Labs initiative in Colorado on Wednesday. NREL plans to take a leading role.
When wildfire smoke brings poor air quality to Colorado, here’s how scientists protect their homes.
The tiny particles in smoke can creep past doors and windows, which means it’s important to take steps to maintain indoor air quality.
We asked Xcel why power bills are going up. They say it’s partly your choices
Xcel Energy customers have watched their utility bills skyrocket in the last few months — and costs aren’t expected to stop climbing any time soon.
