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[–] StuffThatSandwich 0 points 3 points (+3|-0) ago  (edited ago)

http://www.omafra.gov.on.ca/english/crops/facts/00-077.htm#intro

Carbon dioxide enters into the plant through the stomatal openings by the process of diffusion. Stomata are specialized cells located mainly on the underside of the leaves in the epidermal layer. The cells open and close allowing gas exchange to occur. The concentration of CO2 outside the leaf strongly influences the rate of CO2 uptake by the plant. The higher the CO2 concentration outside the leaf, the greater the uptake of CO2 by the plant. Light levels, leaf and ambient air temperatures, relative humidity, water stress and the CO2 and oxygen (O2) concentration in the air and the leaf, are many of the key factors that determine the opening and closing of the stomata.

Ambient CO2 level in outside air is about 340 ppm by volume. All plants grow well at this level but as CO2 levels are raised by 1,000 ppm photosynthesis increases proportionately resulting in more sugars and carbohydrates available for plant growth. Any actively growing crop in a tightly clad greenhouse with little or no ventilation can readily reduce the CO2 level during the day to as low as 200 ppm.

That's why.

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[–] hey_girls_pm_me_toes 3 points -1 points (+2|-3) ago  (edited ago)

That's why this machine is useless. Get all the welfare hogs out of the section 8 houses , give them a shovel and a wheelbarrow full of saplings. Problem solved.

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[–] StuffThatSandwich 0 points 2 points (+2|-0) ago 

...

Did you even read the material I just fucking posted to you?