We live (or at least used live) in a very nice climate equilibrium with the CO2 level we had. Pushing us into another climate equilibrium looks very dangerous for human civilization. However I concede that it might be advantageous for certain plants, but I am not a plant so I am mostly concerned about human civilization.
> However I concede that it might be advantageous for certain plants
Plants are highly dependent on their climactic settings, upending a climate equilibrium is awful to the average plant. And looking at past climactic change events, "another climate equilibrium" is something that happens on kiloyear scales (ages, in geochronologic units).
