JAUE2022-037: Calculation of Carbon Dioxide Emissions and Absorption in Fukuoka Prefecture

Abstract

In Japan, a plan to partial revise to the Act on Promotion of Global Warming Countermeasures was enacted on May 26, 2021. In this Act, 2050 carbon neutral is positioned as a basic principle in the law, and toward its realization, decarbonization efforts that utilize local renewable energy and a mechanism to promote the digitization and open data of corporate emission information have been established. The Regional Decarbonization Roadmap announced in June 2021 shows the process and concrete measures for regional decarbonization, which is also a regional growth strategy, focusing on the efforts and measures that will be concentrated by 2030. Local governments are required to plan and promote decarbonization efforts, and for that purpose, it is necessary to individually calculate greenhouse gas (GHG) emissions and absorptions. In this research, using the Municipal Emissions Chart, the carbon dioxide (CO2) emissions and the amount of power generated by renewable energy are investigated. In addition, using the Fukuoka Forest Planning Area in the Open Data, the current state of the forest and calculate CO2 absorption are grasped. The purpose of these calculation results is to help in considering measures for decarbonization. The target was a total of 61 groups in Fukuoka Prefecture and municipalities in the prefecture. Fukuoka Prefecture's CO2 emissions in fiscal 2018 were 38,380,000 t-CO2, and the composition ratio was 49% for the industrial sector, 17% for the business and other sectors, 10% for the household sector, 22% for the transportation sector, and 1% for the waste sector. It was 7.5 t-CO2 per person. The CO2 reduction due to the introduction of renewable energy was 1,808,000 t-CO2, and CO2 absorption by forest was 627,000 t-CO2. The total ratio of CO2 reduction and absorption to CO2 emissions was 6.3%.