Fig. 1.

(A) Global ${\mathrm{C}\mathrm{O}}_2$ emissions from fossil-fuel-burning, cement production, and land-use change (FF+LUC) (red curve), compared with the measured rate of accumulation of ${\mathrm{C}\mathrm{O}}_2$ in the atmosphere (gold curve) and the inferred rate of change of ${\mathrm{C}\mathrm{O}}_2$ accumulation in the land and ocean (blue curve). Thin lines are annual means, and thick lines are 5-y running means. (B) Decadal trends in ${\mathrm{C}\mathrm{O}}_2$ emissions (FF+LUC) and the atmospheric and total land+ocean sinks. For emissions, positive values indicate an increasing source and negative values a decreasing source (left-hand arrows; sign convention as in Eq. 1). For the atmosphere and land+ocean sinks, positive values indicate a decreasing sink and negative values an increasing sink (right-hand arrows; opposite the sign convention in Eq. 1). All data are from the 2017 Global Carbon Budget (3, 4). Error bars are 1-$\sigma$.