6 years ago
Denver and Boulder have big goals to fight climate change. But there is an obstacle: cannabis
Stretching the day for tiny marijuana plants at a Lafayette greenhouse long after night falls makes for a hefty electric bill. Even with big investments in a computer system to control heat, light and humidity, and in more-efficient light bulbs and fans, RiNo Supply Co. general manager Brian Matthews says 85 percent of the energy costs at the greenhouse are in lighting.
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