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Vegetation response to anthropogenic forcing [(left) historical, (center) RCP8.5 midcentury, (right) RCP8.5 end of century]. We show changes in JJA (top) seasonal mean photosynthesis [gross primary productivity (GPP)] and (bottom) leaf area index (LAI). Each panel shows the ensemble mean of each run’s 30-yr average time series standardized to the 1800-yr PI-control simulation mean and standard deviation. Insignificant change is denoted with hatches.
