Role of Circular Economy on Climate Change
サーキュラーエコノミーが気候変動に果たす役割 (AI 翻訳)
P. L. Pradhan, Pramod Ganjewar
🤖 gxceed AI 要約
日本語
循環経済（CE）が温室効果ガス排出削減に果たす役割を分析し、材料・製品・食品生産からの排出（全体の約45%）に焦点を当てる。建設、重工業、食品システムなどの高インパクトセクターで40-50%の削減可能性を示し、デジタル製品パスポートやAI、ブロックチェーンなどの技術的イネーブラーを特定する。一方で、政策が下流のリサイクルに偏り上流設計が軽視されていることや、リバウンド効果のリスクを指摘する。気候目標達成には循環経済の統合が必須と結論付ける。
English
This paper examines circular economy (CE) strategies for addressing the 'missing 45%' of GHG emissions from material, product, and food production. It finds that high-impact sectors (construction, heavy industry, food) can cut emissions by 40-50% through circular approaches. It identifies DPP, AI-driven sorting, blockchain as key enablers, but notes policy overemphasis on recycling and rebound effects. Concludes that integrating CE into national climate plans is essential for net-zero.
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
日本はSSBJに基づく気候関連開示が進む中、循環経済（CE）はスコープ3排出削減の重要な手段となる。本論文は、建設・重工業・食品といった日本経済の中核産業におけるCE導入の可能性と課題を示しており、有報や統合報告書での開示強化に資する。
In the global GX context
This paper contributes to the global disclosure scholarship by quantifying CE's emission reduction potential, relevant to TCFD/ISSB frameworks. It highlights technological enablers and policy gaps, offering evidence for corporate strategies and national climate plans under the Paris Agreement.
👥 読者別の含意
🔬研究者:This paper provides a comprehensive review of CE potentials and barriers, useful for researchers studying industrial decarbonization and circularity metrics.
🏢実務担当者:Corporate sustainability teams can leverage the identified high-impact sectors and enablers (DPP, AI) to design circular business models and prepare for disclosure mandates.
🏛政策担当者:National and local regulators should note the call to integrate CE into NDCs and address the policy bias toward downstream recycling.
📄 Abstract（原文）
This research explores the critical role of the circular economy (CE) in addressing the “missing 45%” of global greenhouse gas (GHG) emissions—those originating from the production of materials, products, and food—which cannot be eliminated by the energy transition alone. By transitioning from a linear “take-make-waste” model to a restorative system, circular strategies offer a pathway to reduce global GHG emissions by nearly 39% to 45% by 2050. (a) Circular Economics is Directly Proportional to the climate. (b) Key findings highlight that high-impact sectors—including construction, heavy industry (steel, cement, aluminium, and plastics), and food systems—can achieve emission reductions of up to 40–50% through strategies such as material-efficient design, product-life extension, and regenerative agriculture. The analysis further identifies Digital Product Passports, AI-driven sorting, and blockchain traceability as essential technological enablers for scaling these models. However, the study notes significant barriers, including a current policy overemphasis on downstream recycling rather than upstream design, and the risk of the “rebound effect,” where efficiency gains may inadvertently trigger increased consumption. Ultimately, this research concludes that integrating circularity into National Climate Plans is mandatory for achieving the Paris Agreement targets and building a resilient, net-zero global economy.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.46610/joees.2026.v011i02.004first seen 2026-07-17 05:32:55
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