Massively increases vegetation cover while reducing farm yields? I find that highly implausible. One critical impact of higher CO2 concentrations is that drier

Massively increases vegetation cover while reducing farm yields? I find that highly implausible. One critical impact of higher CO2 concentrations is that drier climates see more vegetation, so you see a lot of greening in previously arid, barren places. And that also has massively positive implications for farm yields.