A research on the optimal timing of CO2 mitigation considering its co-benefits

2015 Fiscal Year Final Research Report

• Project/Area Number: 24760728
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Energy engineering
• Research Institution: Nagasaki University (2014-2015); The University of Tokyo (2012-2013)
• Principal Investigator: TAKESHITA Takayuki 長崎大学, 水産・環境科学総合研究科(環境), 准教授 (70344075)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: エネルギーシステム / 気候変動緩和 / コベネフィット

Outline of Final Research Achievements

This research first quantitatively assessed the co-benefits of CO2 mitigation under climate stabilization constraints so that global average temperature increase should be limited to 2 degrees Celsius above pre-industrial levels, and then derive the most cost-effective timing of CO2 mitigation under the climate stabilization constraints described above taking into account the co-benefits of CO2 mitigation. These were done by using a long-term bottom-up type global energy system model called REDGEM70 with 70 world regions. The results show that a decline in air pollutants emissions, a decline in import share of primary energy supply, and an increase in Shannon-Wiener diversity index occur as the co-benefits of CO2 mitigation. The results also show that global CO2 emissions decrease in 2020 compared to the 2010 level and remain almost constant until 2050.

Free Research Field

エネルギー学