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Homes and office buildings consume three-quarters of U.S. electricity, and the National Renewable Energy Laboratory wants to lower that figure by erecting what it believes will be the largest "net-zero" energy building in the world — one that produces as much power onsite as it uses.
Airborne nitrogen pollution from vehicle exhaust and farm fertilizer is turning algae in the alpine lakes of Rocky Mountain National Park into junk food for fish, a study says.
Bernice and Jerry Angely like to show visitors the singed T-shirt a friend was wearing when their water well exploded and shot flames 30 feet high.
A murdered young woman buried as Jane Doe in Colorado 55 years ago. An Arizona family puzzled and saddened as Dorothy Gay Howard's disappearance stretched into decades.
Colorado's unemployment rate fell again, dropping to 7 percent in September and prompting prediction of a continuing downward trend.
Efforts to mine oil from rock are ongoing in Wyoming, Colorado and Utah, speakers at a symposium said Tuesday, the same day Interior Secretary Ken Salazar said in Salt Lake City that he would cut the size of new oil shale leases.
U.S. Rep. Diana DeGette is moving ahead with her bill to put a widely used oil and gas drilling process under federal oversight while also seeking a study to gather more data on the practice.
The discovery of 10 lynx kittens this spring marks the first newborns documented in Colorado since 2006, heartening biologists overseeing restoration of the mountain feline.
The push to put a widely used oil and gas drilling process under federal oversight could gain ground with a new administration in place and concerns about the development of huge gas fields in the East.
The primary U.S. lab for renewable energy will receive $110 million in federal stimulus funds and another $83 million will go toward wind energy and other alternative power and efficiency projects, Energy Secretary Steven Chu said Wednesday.
A coyote ambling into a Chicago sandwich shop or taking up residence in New York's Central Park understandably creates a stir. But even here on the high plains of Colorado, where the animals are part of the landscape and figure prominently in Western lore, people are being taken aback by rising coyote encounters.
Danish Crown Prince Frederik said Wednesday that expanding a country's renewable energy sources and recovering from a recession didn't have to be mutually exclusive.
Four conservation groups are teaming up to try to restore some of the country's original grasslands and preserve the wildlife that depends on it.
Brittany Lyons and her mother, Sherie Lyons, do their bit to cut pollution by carpooling — and this past year they went even further.
Environmental groups are threatening to sue the federal government to block plans for commercial oil shale development on nearly 2 million acres of public land in Colorado, Utah and Wyoming.
Four years ago, Mark Udall ran for U.S. Senate from Colorado — for 24 hours.
Mark Udall likes to say that his pursuit of public service and environmental causes is in his DNA. His cousin Tom could say that, too.
The Rev. Al Sharpton said Monday that he and other civil rights leaders are kicking off a campaign to register voters in seven key states.
Police arrested nine people taking part in an antiwar march at the Republican National Convention on Sunday after they crossed a security fence into a restricted area near Xcel Energy Center.
This frontier town turned modern city wants to put its best foot forward for the Democratic National Convention — just not necessarily one wearing a cowboy boot.
Climate change is increasing the risk of U.S. crop failures, depleting the nation's water resources and contributing to outbreaks of invasive species and insects, according to a federal report released Tuesday.
A hamlet near here of wooded gulches, rocky outcrops and views of the snowy tops of southern Colorado's Sangre de Cristo mountains is the perfect escape for retirees and telecommuters who've settled in.
The man who killed four people at a church and missionary training center shot himself in the head and died after being hit by shots from a church security officer, police said Tuesday.
The man who killed four people at a church and missionary training center was killed by a bullet he fired himself, though he was hit by shots from a church security officer, police said Tuesday.
The man who killed four people at a church and missionary training center died of a self-inflicted shotgun wound, police said Tuesday.
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