Much of the standard economic modelling, including Integrated Assessment Models, does not embody key aspects of these essentials. We identify fundamental flaws in both the descriptive and normative methodologies commonly used to assess climate policy, showing systematic biases, with costs of climate action overestimated and benefits underestimated. We provide an alternative methodology by which the social cost of carbon may be calculated, one which embraces the essential elements we have identified.

Remarks by Martín Guzmán at 12th Edition of the Paris Forum: Key findings and conclusions of the Jubilee Report
Dear members of the Paris Club Secretariat, Thank you for the invitation to present some of the key findings and conclusions of the Jubilee Report, commissioned by Pope Francis and prepared by a Commission of