A workgroup made up of Denver business owners, city pot regulators and marijuana opponents starts work Wednesday on suggesting regulations.
Reports show attendance at the Colorado National Monument has decreased by a third.
Earth sizzled to a third-straight record hot year in 2016, government scientists said Wednesday. They mostly blame man-made global warming with help from a natural El Nino, which has since disappeared.
Former President George H.W. Bush has been hospitalized after experiencing shortness of breath.
Last year was the hottest year ever recorded, marking the third year in a row that average global temperatures hit record-setting levels, NASA and NOAA said Wednesday.
Nigeria's President Muhammadu Buhari offered his condolences to the families, labeling the bloodbath a "regrettable operational mistake."
Photographer Dimitar Dilkoff documented Iraqi special forces pushing deeper into ISIS-held districts in eastern Mosul.
A series of three strong earthquakes hit central Italy on Wednesday. The strongest had a magnitude of 5.7.
In a major speech to the World Economic Forum, the vice president warned of Russian interference in the democratic process.