2023 Volume 16 Issue 2 Pages 14-26
In domestic and international negotiations on climate change mitigation measures, it is required to quantitatively assess the effects and impacts of measures, and the role of model analysis and prediction for this purpose has increased over the past three decades. In this paper, we review the scientific findings from IPCC/AR6 that have been elucidated by global mitigation assessment models, review the development of mitigation assessment models in Japan, and summarize their contributions to considerations regarding reduction targets and policies at the national level and to planning at the local level. As future research challenges, we point out the need to take into account aspects of society, culture, institutions, and behavioral change that have not been actively incorporated into mitigation measure assessment models, and to incorporate findings by sectoral, theoretical, and empirical studies.