Structural attribution of embodied carbon emissions using a regional input–output framework

日本語

地域産業連関表を用い、最終需要や部門別の生産活動が生み出す組み込み炭素排出を構造的に帰属する手法を提示。地域間の排出責任の明確化やサプライチェーン上の排出ホットスポット特定に貢献する。企業のScope3算定や地域政策の基礎資料になり得る。

English

This study presents a structural attribution approach for embodied carbon emissions using regional input-output tables, clarifying which final demand categories and production activities drive emissions. It helps identify emission hotspots across supply chains and allocate responsibility across regions. The method can support corporate Scope 3 accounting and regional climate policy.

日本のGX文脈において

地域産業連関分析は日本でも自治体の排出量把握やサプライチェーン対策に活用でき、SSBJ開示やScope3算定の基盤となり得る。ただし本論文の具体的な実証範囲は要確認。

In the global GX context

Regional input-output analysis is fundamental to consumption-based carbon accounting and supply-chain scope 3 measurement. This work contributes methodologically to global efforts on sub-national emission attribution, which aligns with GHG Protocol and ISSB disclosure needs.