Quote:
Originally Posted by oil pan 4
They to do quite well with double the CO2 we have now.
More plant food, better growth right?
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CO2 is not plant food, sunlight is plant food. Put a plant in total darkness but plenty of CO2, and it will eventually die.
Also, more is not necessarily better. In addition to CO2 (and O2) from the air, plants generally need, water, sunlight, and soil nitrates, but too much of any of those can kill them.