Extended Data Fig. 1: Robustness of tropical land climate–carbon interannual correlations.
From: Increasingly negative tropical water–interannual CO2 growth rate coupling
a, Histograms of climate–carbon interannual correlations in the first three decades (1960–1989) and in the recent three decades (1989–2018), derived using 5000 bootstrapping repeats. Same as Fig. 1c, but tropical water refers to 6-month lagged precipitation from GPCC and tropical temperature is derived from Berkeley Earth global surface temperature. b, Same as Fig. 1c, but CGR is replaced with residual land sink (RLS).
