CO2 acclimation

Six different studies in which the designated types of plants were exposed in experimental plots to elevated (≈567 ppm) or ambient (≈365 ppm) atmospheric CO2 concentration for 5 years or longer. Shown are percent differences in plant biomass between elevated-CO2 and ambient-CO2 plots as a function of treatment year.

Bloom (2010) Global Climate Change: Convergence of Disciplines. Sinauer Associates.