Automated fans and cultivation lights are pictured operating above cannabis plants at RiNo Supply's cultivation facility near Lafayette on Dec. 13, 2018. (Andy Colwell, Special to The Colorado Sun)

Denver and Boulder have big goals to fight climate change. But there is an obstacle: cannabis

Costs, regulations pushing legitimate marijuana grow operations to be more efficient, but illicit grows still consume 75 percent of the energy used to cultivate pot

Environment Primary category in which blog post is published

Nicolais: Giellis campaign for Denver mayor goes from incompetent to shameful

Jamie Giellis capped an ugly week on the campaign trail with a stumbling debate performance highlighted by a cynical reply to the Asian community

Opinion