Colorado and Washington both have legal recreational marijuana. But they regulate growers and dispensaries differently, which has created a David vs. Goliath in the marketplace.
Numerous bats have been found in Colorado with white-nose syndrome. The fungus has killed millions of bats in North America, leaving biologists concerned about its impact on bats in the state.
A veterinarian and epidemiologist who studies infectious diseases in dairy cows discusses the outbreak, how cows recover and what the government is doing to keep the milk supply safe.
With their upcoming decision concerning whether Donald Trump can appear on the Colorado ballot, Supreme Court justices face the possibility that the ruling could be ignored or defied by the public.
Noxious smells and blowing ash initially made the homes unlivable. But even after their homes were cleaned, some residents still reported health effects months later.