Fig. 1: Variability of net primary production trends from CMIP6 Earth system models.
From: Global decline in net primary production underestimated by climate models
a Area-weighted mean-normalised net primary production (NPP) annual trends (% year−1) calculated using ordinary least squares for the historical (1850–2014), contemporary (1998–2023) and future (2015–2100) periods for the CMIP6 Earth system model ensemble. b Area-weighted ΔNPP (Pg C year−1), calculated as the difference between the end of the historical period (1995–2014) and the end of the century (2081–2100), for each of the Earth system models in the CMIP6 ensemble. Both panels are sorted by ΔNPP from low to high values.
