LeafByNiggle
Well-known member
If feeding plants were the only consequence of higher CO2 levels, this argument might be somewhat compelling. But you have not even addressed the many serious claims of adverse effects, as if these improvements in the growth of some plants makes up for all those adverse effects.There is legitimate debate on the matter. Many don’t believe that CO2 is harmful in any way. In fact, it is plant food.
Greenhouses, for example, find optimal plant growth occurs in the 1200-1500 ppm range. That’s why they buy CO2 generators.
Our current CO2 level on earth is about 400 ppm. We’ll be lucky if we even get to 500 ppm.