削減ではなく再分配：国際貿易が世界の食料供給の持続可能性に果たす役割
Redistributed, Not Reduced: The Role of International Trade in Global Food Supply Sustainability (原題)
Clement Boucher, Gregory N. Sixt, Kenneth M. Strzepek
🤖 gxceed AI 要約
日本語
本研究は、国際貿易と将来の気候変動を考慮した食料供給持続可能性指標（FSSI）を提案する。炭素排出、土壌劣化、水ストレスの3つの柱で各国を5段階に分類し、高所得国は持続可能性が低く、低所得国は高いが気候変動に脆弱であることを示す。貿易は環境リスクを除去せず再分配するため、世界的な脆弱性が持続する。政策提言として、輸入の持続可能性基準への適合や供給源の多様化を挙げる。
English
This study introduces the Food Supply Sustainability Index (FSSI), a composite measure integrating international trade and future climate scenarios. It categorizes countries into five sustainability classes across carbon, soil, and water pillars, finding high-income countries produce food less sustainably while low-income countries are more sustainable but vulnerable. Trade redistributes rather than removes environmental risk, creating persistent global vulnerability. The FSSI supports policy interventions like aligning imports with sustainability criteria and diversifying suppliers.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の食料自給率の低さと輸入依存を踏まえ、FSSIは貿易を通じた環境負荷の「外部化」を可視化する。日本は高所得国として持続可能性の低い生産に依存している可能性があり、サプライチェーン開示や持続可能な調達方針に示唆を与える。
In the global GX context
This paper contributes to global sustainability scholarship by quantifying how trade redistributes environmental burdens across borders, relevant to supply chain due diligence and climate risk assessment. It offers a replicable index for benchmarking national food systems, supporting policy alignment with international sustainability goals.
👥 読者別の含意
🔬研究者:Provides a novel composite index linking trade, climate, and sustainability, useful for further research on food systems and environmental footprints.
🏢実務担当者:Offers a framework for companies to assess sustainability risks in food supply chains and align sourcing with sustainability criteria.
🏛政策担当者:Highlights the need for trade policies that account for environmental impacts and support sustainable intensification in vulnerable regions.
📄 Abstract（原文）
Global food systems must balance productivity with environmental sustainability amid climate change, geopolitical shocks, and unevenly distributed natural resources. This study introduces the Food Supply Sustainability Index (FSSI), a transparent, composite measure of the sustainability of a nation’s food production including international trade, and future climate-driven trade dynamics, with a distance-to-target method. Using FAO and IFPRI data, the FSSI categorises countries into five sustainability classes across three pillars: carbon footprint, soil degradation, and water stress. The results show high-income countries produce food less sustainably, while low-income countries do so more sustainably yet are more vulnerable to climate change and trade disruptions. The FSSI therefore recognises that trade redistributes rather than removes environmental risk, creating a more evenly distributed yet persistent global vulnerability to shocks. Under future climate scenarios, the index identifies that sustainability worsens in poorer regions, especially Sub-Saharan Africa, exposing countries to food insecurity. By combining multiple environmental dimensions into a single metric, the FSSI enables countries to benchmark sustainability performance and identify priority areas for intervention. The FSSI supports policies such as aligning imports with sustainability criteria, diversifying suppliers toward lower-impact origins, and supporting sustainable intensification in low-income settings. The FSSI provides a replicable, policy-relevant tool to assess, compare, and communicate global food system sustainability.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18168176first seen 2026-08-30 04:36:08
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