I think the correct way to look at this is bottlenecks.

Does more CO2 actually help plants in a statistically detectable manner, or is there something else preventing it from going faster? (such as a hard limit on how much photosynthesis can happen, or not enough sunlight)

Reply to this note

Please Login to reply.

Discussion

Unequivocally yes

Has it been proven under equal environments (excl. CO2 ppm) with different plant types and a somewhat large sample size?

Most large indoor grow operations use co2 generators to increase yields

Yes.

Commercial greenhouses pay to inject co2 to increase yields.

NASA measured a greening of the Earth

🔥