Development of the Model to Identify the Hotspots for Reducing the Geo-Political Risk of Critical Metals

• Project/Area Number: 16H07072
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Design and evaluation of sustainable and environmental conscious system
• Research Institution: Nagasaki University
• Principal Investigator: SHIGETOMI Yosuke 長崎大学, 水産・環境科学総合研究科(環境), 助教 (30780358)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: レアメタル / 国際貿易 / トレードオフ / 国内経済政策 / 低炭素社会 / 低炭素技術 / グラビティモデル / 将来シナリオ / クリーンエネルギー / 持続可能システム / マテリアルフロー解析

Outline of Final Research Achievements

This research has obtained essential results associated with policy implications for both national greenhouse gas mitigation target committed to the Paris Agreement and the geopolitical risk of critical metals necessary for the new energy technologies in Japan.
First, the global flows of neodymium, cobalt, and platinum in 2005 were estimated using the international trade and country specific data, and I found that those of neodymium and platinum were consistent with the traditional gravity model of trade. Second, an EEIOA was carried out to estimations of life cycle greenhouse gases emissions derived from Japanese household consumption in 2030 under future scenarios with a focus on recent Japanese socio-economic policies. This implies that, compared with a business-as-usual scenario, the household emissions would need to be reduced by more 7.8-29% in order to meet the emission target that can be set using the emissions for 2009 and the reduction target proposed in the Paris Agreement.

Research Products

• [Journal Article] Fertility-Rate Recovery and Double-Income Policies Require Solving the Carbon Gap under the Paris Agreement (2018)
  • Author(s): Shigetomi, Y., Nansai, K., Kagawa, S. and Tohno, S.
  • Journal Title: Resources, Conservation & Recycling Volume: 133 Pages: 385-394
  • DOI: 10.1016/j.resconrec.2017.11.017
  • Peer Reviewed
• [Journal Article] Economic and social determinants of global physical flows of critical metals (2017)
  • Author(s): Yosuke Shigetomi, Keisuke Nansai, Shigemi Kagawa, Yasushi Kondo, Susumu Tohno
  • Journal Title: Resources Policy Volume: 52 Pages: 107-113
  • DOI: 10.1016/j.resourpol.2017.02.004
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The role of primary processing in the supply risks of critical metals (2017)
  • Author(s): Keisuke Nansai, Kenichi Nakajima, Sangwon Suh, Shigemi Kagawa,Yasushi Kondo, Wataru Takayanagi, Yosuke Shigetom
  • Journal Title: Economic Systems Research Volume: 印刷中 Issue: 3 Pages: 335-356
  • DOI: 10.1080/09535314.2017.1295923
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] 一億総活躍社会におけるパリ協定達成への課題 (2017)
  • Author(s): 重富陽介, 南齋 規介，加河茂美，東野 達
  • Organizer: 第12回日本LCA学会研究発表会
  • Place of Presentation: 産業技術総合研究所(茨城県つくば市)
  • Year and Date: 2017-03-01
• [Presentation] Carbon footprint mitigation of Japanese households for achieving the Paris Agreement under the demographic and income scenarios (2017)
  • Author(s): Shigetomi Yosuke、Nansai Keisuke、Kagawa Shigemi、Tohno Susumu
  • Organizer: The 25th International Input-Output Conference, Atlanta
  • Int'l Joint Research
• [Presentation] How carbon footprint of households is affected by the Japan’s new policy to raise birthrate and income? (2017)
  • Author(s): Shigetomi Yosuke、Nansai Keisuke、Tohno Susumu
  • Organizer: The 8th International Conference on Industrial Ecology
  • Int'l Joint Research
• [Presentation] Promotion of household social policies with adoption of the Paris Agreement in Japan (2016)
  • Author(s): Shigetomi, Y.
  • Organizer: The 12th EcoBalance International Conference
  • Place of Presentation: 京都テルサ(京都府京都市)
  • Year and Date: 2016-10-03
  • Int'l Joint Research
• [Presentation] Supply risk assessments of low-carbon energy technologies with Hybrid LCA (2016)
  • Author(s): Nansai, K., Suh, S., Nakajima, K., Kagawa, S., Kondo, Y., Shigetomi, Y.
  • Organizer: The 12th EcoBalance International Conference
  • Place of Presentation: 京都テルサ(京都府京都市)
  • Year and Date: 2016-10-03
  • Int'l Joint Research
• [Book] Environmental and Economic Impacts of Decarbonization: Input-Output Studies on the Consequences of the 2015 Paris Agreements (2017)
  • Author(s): Shigetomi Yosuke、Nansai Keisuke、Kayoko Shironitta、Kagawa Shigemi
  • Total Pages: 382
  • Publisher: Routledge
  • ISBN: 9780415787406