Economic Analyses of Regional Impacts with Adaptation to Climate Change for the Paris Agreement

Abstract

This study measures regional impacts of adaptation to climate change for the Paris Agreement under the Shared Socio-Economic Pathways and Representative Concentration Pathways scenarios. We develop a global economic model with adaptation to climate change. Simulated results indicate that: 1) Asian and African adaptation costs exceed more than one percent of GDP in the year 2100 under the business as usual scenario; 2) adaptation costs under the 2.0˚C target are higher in Asia and Africa than other regions; and 3) adaptation costs amount to one percent of GDP in Japan, EU and Latin America under the 1.5˚C target scenario by adaptation.