[JudasGoat]

My cannabis plants flower with 15 to 20% yield improvement and no abnormalities at 1500ppm CO2. Edit One of the side effects of CO2 infusion ironically, is tolerance of higher temperatures.

[m0llusk]

This is not about your cannabis yields. In high concentrations CO2 is a pollutant: https://yaleclimateconnections.org/2020/12/more-co2-in-the-a...