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Precipitation minus evapotranspiration (P – E): (top) at the annual scale and (bottom) for summer (JJA) [(left) historical, (center) RCP8.5 midcentury, (right) RCP8.5 end of century]. 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 hatching.
