Instead of releasing this greenhouse gas, beer brewers are selling it to pot growers

The refrigerator-sized device purifies the greenhouse gas and chills it into a liquid. Stored in 750-pound tanks, the recovered CO2 is transported about nine miles to the Clinic, where growers vaporize the liquid and pump it into rooms full of pot plants to speed photosynthesis.

“This is an example of something we think has great potential to scale in Colorado — we have a thriving craft brewery industry and a thriving cannabis sector,” said Gov. Jared Polis (D), whose administration provided technical and communications support, but no funding, to the project. “It’s an economic win — and it has the potential to help with climate.”

CO2 emissions represent a large percentage of the greenhouse gases that trap heat in the atmosphere, warming the planet. [Read more at The Washington Post]