Figure 5.33

Figure caption

Figure 5.33 | Carbon sink response in a scenario with net carbon dioxide (CO₂) removal from the atmosphere. Shown are CO₂ flux components from concentration-driven Earth system model (ESM) simulations during different emissions stages of SSP1-2.6 and its long-term extension: (a) Large net positive CO₂ emissions; (b) small net positive CO₂ emissions; (c), (d) net negative CO₂ emissions; (e) net zero CO₂ emissions. Positive flux components act to raise the atmospheric CO₂ concentration, whereas negative components act to lower the CO₂ concentration. Net CO₂ emissions, land and ocean CO₂ fluxes represent the multi-model mean and standard deviation (error bar) of four ESMs (CanESM5, UKESM1, CESM2-WACCM, IPSL-CM6a-LR) and one Earth system model of intermediate complexity (UVic ESCM; Mengis et al., 2020). Net CO₂ emissions are calculated from concentration-driven ESM simulations as the residual from the rate of increase in atmospheric CO₂ and land and ocean CO₂ fluxes. Fluxes are accumulated over each 50-year period and converted to concentration units (ppm). Further details on data sources and processing are available in the chapter data table (Table 5.SM.6).