This study analyzes the impact of climate change policy on the medium- to long-term macroeconomy using a macro model in the form of joint research with domestic and foreign researchers. The scale of the carbon market in Japan, China and South Korea is the largest in the world, and market expandability (cooperation between Japan, China and South Korea, possibility of ties with ASEAN and EU) is anticipated in the future. Therefore, as shown in Fig., as an initiative toward achieving carbon neutrality in the region, this research aims to elicit what the challenges are to creating carbon markets in collaboration with each country, and what the benefits might be for each country, and includes the use of modelling.

The intensifying pace of climate change, along with related crises, has led to stronger government policies and heightened consumer awareness of the issue, which requires businesses to decarbonize their entire operations. The present context, therefore, could be seen as a transition period in which companies have the opportunity to turn a crisis into an opportunity and advance their carbon management from its current, or conventional form, i.e., environmental management (mainly pollution management and compliance) by adopting more strategic and longer-term visions, implementing more effective practices, and further contributing to society and value. This study analyzes the status and range of the corporate response to climate change and determinants through an empirical survey of companies. Further, by evaluating policies, obstacles, and required support measures from a company's point of view.

Faculty of Environmental Science has signed an agreement with Nagasaki Carbon Offset Promotion Association, the industry-related organizations in the prefecture. Under this agreement, our lab is conducting joint research on corporate decarbonization management using carbon offset credits derived from local natural resources (for example, forests). This study is anticipated to derive useful recommendations for locally-based businesses and government entities on action plans for climate change and the Sustainable Development Goals (SDGs). It is also expected to contribute to the realization of Nagasaki University’s “Planetary Health” vision.

This study aims to improve our understanding of how climate change policies can be utilized to support the transition to decarbonization society in China, Japan, and Korea, whilst also to deliver social benefits as well as human health in the aftermath of the Covid-19 pandemic. So it will exam the quantitative analysis of the mid to long-term comprehensive impact of decarbonization strategies for planetary health targeting to China, Japan, and Korea.