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by cameron_b 1582 days ago
Most Greenhouses supplement CO2 to increase growth in plants since there's no natural O2 -> CO2 back-cycle in the greenhouse. So yes, Greenhouses use CO2.

Reference in Commercial Greenhouse Industry - https://www.greenhousemegastore.com/equip/co2-generators/

1 comments

That's not why they're called greenhouse gasses, though. They create the greenhouse effect for the entire planet.