The IASA-led study is the first to compare capital requirements of 1.5˚C & 2˚C.
The sums envisaged here are in the same order of magnitude as the “clean trillion” analysis of CERES. For context, annual investment in global energy was $1,700 bn in 2016 (IEA). And as ever, these studies do not subtract the enormous financial benefits of avoided climate damage, which mean there is no net cost to society, and rather a substantial gain.
Image: Carbon Brief plot of data in original paper, re-edited for visibility