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2022 Fiscal Year Research-status Report

Science-based targets for material use in line with the Earth's carrying capacity

Research Project

Project/Area Number 21K12344
Research InstitutionNational Institute for Environmental Studies

Principal Investigator

渡 卓磨  国立研究開発法人国立環境研究所, 資源循環領域, 研究員 (10845811)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywordsコンクリート / セメント / カーボンニュートラル
Outline of Annual Research Achievements

本年度は、脱炭素化が最も困難な素材の一つであるセメント・コンクリートを対象に、2050年カーボンニュートラルと整合的な物質フローの将来像を解明した。解析の結果、供給側における対策を仮に最大限に実施した場合でもカーボンニュートラル達成には十分でなく、素材を過剰に使用する設計の回避や、建設物の長期利用、共有化、都市機能の集約化、解体部品の再利用等の需要側における対策が不可欠であることが明らかとなった。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

モデル開発・解析・論文発表の全てにおいて概ね順調に進展している。

Strategy for Future Research Activity

今後は、今年度までに確立したモデルを鉄鋼・木材・プラスチックに適用し、物質フローの将来像の解析を実施する。

Causes of Carryover

次年度に複数本の論文のオープンアクセスを予定しているため、調整を行なった。

  • Research Products

    (14 results)

All 2023 2022 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 9 results,  Invited: 3 results)

  • [Int'l Joint Research] University of Cambridge(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      University of Cambridge
  • [Int'l Joint Research] University of Antwerp(ベルギー)

    • Country Name
      BELGIUM
    • Counterpart Institution
      University of Antwerp
  • [Journal Article] Limited quantity and quality of steel supply in a zero-emission future2023

    • Author(s)
      Takuma Watari, Sho Hata, Keisuke Nansai, and Kenichi Nakajima
    • Journal Title

      Nature Sustainability

      Volume: 6 Pages: 336

    • DOI

      10.1038/s41893-022-01025-0

    • Peer Reviewed
  • [Journal Article] Growing role of concrete in sand and climate crises2023

    • Author(s)
      Takuma Watari, Zhi Cao, Andre Cabrera Serrenho, and Jonathan Cullen
    • Journal Title

      iScience

      Volume: 26 Pages: 106782

    • DOI

      10.1016/j.isci.2023.106782

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficient use of cement and concrete to reduce reliance on supply-side technologies for net-zero emissions2022

    • Author(s)
      Takuma Watari, Zhi Cao, Sho Hata, and Keisuke Nansai
    • Journal Title

      Nature Communications

      Volume: 13 Pages: 4158

    • DOI

      10.1038/s41467-022-31806-2

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Envisioning sustainable material cycles in a carbon-neutral future2022

    • Author(s)
      Zhi Cao and Takuma Watari
    • Organizer
      The 14th ISIE Socio-Economic Metabolism section conference
    • Int'l Joint Research / Invited
  • [Presentation] SSPシナリオに基づく将来の金属生産に伴う温室効果ガス排出量と気候変動目標の関係2022

    • Author(s)
      横井崚佑, 渡卓磨, 本下晶晴
    • Organizer
      エコデザイン・プロダクツ&サービス 2022シンポジウム
    • Int'l Joint Research
  • [Presentation] Global target by 2050 to reduce natural resource use in the automotive industry2022

    • Author(s)
      Takimoto H., Kosai S., Watari T., Kashiwakura S., Yamasue E.
    • Organizer
      The 15th Biennial International Conference on EcoBalance
    • Int'l Joint Research
  • [Presentation] Future metal production and associated greenhouse gas emissions with implication for climate goals2022

    • Author(s)
      Yokoi R., Watari T., Motoshita M.
    • Organizer
      The 15th Biennial International Conference on EcoBalance
    • Int'l Joint Research
  • [Presentation] Gold production and mercury consumption from artisanal and small-scale mining2022

    • Author(s)
      Cheng Y., Watari T., Nakajima K., Seccatore J., Veiga M. Marcello, Nansai K
    • Organizer
      The 15th Biennial International Conference on EcoBalance
    • Int'l Joint Research
  • [Presentation] Comprehensive Review of Gold Production, Mercury Consumption and Emission in Artisanal and Small-scale Gold Mining (ASGM)2022

    • Author(s)
      Cheng Y., Watari T., Seccatore J., Nakajima K., Nansai K.
    • Organizer
      The 15th International Conference on Mercury as a Global Pollutant (ICMGP )
    • Int'l Joint Research
  • [Presentation] Temporally-explicit abiotic depletion potential (TADP) of mineral resources based on future demand projections2022

    • Author(s)
      Yokoi R., Watari T., Motoshita M.
    • Organizer
      SETAC Europe 32nd Annual Meeting
    • Int'l Joint Research
  • [Presentation] Bulk material cycles at national level in a zero-emission future2022

    • Author(s)
      Takuma Watari
    • Organizer
      12th session of the ISIE Online Perpetual Conference
    • Int'l Joint Research / Invited
  • [Presentation] The availability of copper - a perspective from science2022

    • Author(s)
      Takuma Watari
    • Organizer
      14th Copper Academy
    • Int'l Joint Research / Invited

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Published: 2023-12-25  

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