The lawsuit alleges manufacturers knew, or should have known, about potential health risks from the chemicals.
Energy and Environment
All Energy and Environment Stories
The lights are more efficient, but there are also health implications to consider.
The EPA called the move "an important step" in getting the resources necessary to further study and clean up the area and downstream communities.
The county's commissioners say that adding large industry, such as oil and gas, would put a strain on natural resources.
We’ve been asking for your thoughts on climate change in Colorado -- and you delivered with more than 90 responses.
In Security, Fountain and Widefield, health officials have begun to trace the issue to nearby Peterson Air Force Base.
What the experts are discovering about climate change at Rocky Mountain, Black Canyon, Mesa Verde and Sand Dunes national parks.
The Forest Service is considering tightening access to Conundrum. Should other Colorado hot springs consider one too?
A new "biography" of coyotes explains their extraordinary resilience and why they spread from the West across North America
An ambitious project is symbolic of how land managers are approaching one of their biggest long-term issues: climate change.
The structural integrity of Spruce Tree House, one of the Southwest’s most popular archeological attractions, is a particular worry.
Cross your fingers for clear skies -- the annual Perseid meteor shower will peak later this week.
NPS says parks need to think more creatively in order to deal with a changing climate -- and visitation patterns.
Temperatures are rising at the park near Montrose. So more climbers are visiting earlier and later in the year -- but that has its issues too.
For decades some Westerners have tried to make it easier to clean up thousands of abandoned mines, but a solution remains elusive.