269450eeb17fa4bc

269450eeb17fa4bc
paulmccabe
on December 22, 2022
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    WaldoJPeabody
    I saw an article about christmas tree growers using bottled CO2 in their green houses. When they bumped the CO2 levels from the normal 400 PPM to 800 PPM, the plantings grew about 40% faster.
    • December 22, 2022