One serious caveat about the "plants like more CO2" idea: The increase in CO2 strongly disfavors slow-growing old groth and established ecosystems, and favors

One serious caveat about the "plants like more CO2" idea: The increase in CO2 strongly disfavors slow-growing old groth and established ecosystems, and favors fast growing plants, which are typically invasive species that take over and destroy established ecosystems, and reduce biodiversity. Per usual, the devil is in the details.