There are plants (for example hop and wheat [1]) that cannot grow well at high CO2 concentrations.
[1] http://science.sciencemag.org/content/328/5980/899.abstract
There are plants (for example hop and wheat [1]) that cannot grow well at high CO2 concentrations.
[1] http://science.sciencemag.org/content/328/5980/899.abstract