Fig. 3: Contribution to the variance of each parameter as a function of time using Sobol Indices (cost-minimising setting).
From: On the optimality of 2°C targets and a decomposition of uncertainty

In the top row, all parameters are considered. In contrast, in the bottom row, the same analysis is performed while fixing the mitigation costs at three distinct levels: low, medium and high costs. Note that for clarity, the square root of the variance—the standard deviation—has been shown: the unit then becomes US$ instead of the square of it. The decomposition with variances is shown in Supplementary Figure 2.2.