How CO2 starvation Caused the Greatest Extinction Event

I am sure you have stories of people talking to their plants and claiming that the very act of talking to them makes them grow better. Sounds like nonsense – doesn’t it? And that’s what I thought for the longest time but I was proven wrong. By spending time with a plant in a closed environment the person exhaled CO2 and ever so slightly increased the CO2 concentration directly around the plant which in turn makes it grow better. CO2 is plant food and plants are very efficient with taking it out of the air. We were close to a catastrophe before the industrial age as we neared minimum CO2 which would have killed all plant life. Putting out more CO2 saved us. Thank you CO2. 

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