Even with a newly-minted trifecta control of the levers of government, Democrats will face roadblocks.
Energy and Environment
All Energy and Environment Stories
Polis made one of his first public appearances as Colorado's governor-elect at the Outdoor Retailer Winter Market.
Climate change is pushing polar bears from the sea to land. Joel Berger wants to find out how the oxen will respond to this potential predator.
The land was in big game habitat and the North Fork Valley in western Colorado.
Both the Obama and Trump administrations have tried repeatedly to get the case dismissed since it was filed in 2015.
The Interior Secretary touts that the overhaul would move employees out of D.C. Some Democrats have called the plan unworkable.
The U.S. Environmental Protection Agency is expected to downgrade the Front Range region's ozone to "serious."
If it passes, Proposition 112 would require any new oil and gas development not on federal land to be set back about a half-mile from homes and "vulnerable areas.”
The fish has a reputation for being fun to catch, but they're causing a lot of trouble for the Pastorius Reservoir.
It's not a guarantee, but El Niño-produced rainfall would relieve parched conditions in many parts of the drought-stricken Southwest.
A possible discharge of water from an old mine site upstream from Left Hand Creek in Boulder County killed an unknown number of fish.
Broomfield residents say the city isn't following guidelines set by a new law to prioritize health and safety over oil drilling.
Cranbeary leaves Tuesday for new digs in Alaska. She and Lee were together for seven years and were unable to produce a cub.
Professor Zoe Donaldson studies how humans grieve the loss of romantic, monogamous partners by researching the tiny rodents.
A new study from the National Center for Atmospheric Research in Boulder predicts more rainfall on fewer, concentrated days leading to more intense flooding.