Figure 6.21

Figure 6.21 | Residual emissions and carbon dioxide removal (CDR) when global energy and industrial CO2 emissions reach net-zero. Residual emissions and CDR in net-zero scenarios from the AR6 Scenarios Database show global differences across warming levels (light blue = scenarios that limit warming to 1.5°C (>50%) with no or limited overshoot and scenarios that return warming to 1.5°C (>50%) after a high overshoot; yellow = scenarios that limit warming to 2°C (>67%) and scenarios that limit warming to 2°C (>50%); dark blue = scenarios that limit warming to 2.5°C (>50%), scenarios that limit warming to 3°C (>50%), scenarios that limit warming to 4°C (>50%), and scenarios that exceed warming of 4°C (≥50%)). In each case, the boxes show the 25th to 75th percentile ranges, and whiskers show the 5th and 95th percentiles. Lines and circles within the boxes denote the median and mean values, respectively.