欧州における建設・解体廃棄物管理の循環経済：脱炭素化、脱物質化、経済的利益
Decarbonization, Dematerialization, and Economic Gains in Circular Economy for Construction and Demolition Waste Management in Europe (原題)
Chunbo Zhang, Jinxin Wang, Shuo Wang, Rupert J. Myers, Julia A. Stegemann
🤖 gxceed AI 要約
日本語
EU27+4の建設・解体廃棄物（CDW）の循環戦略を2010〜2050年で評価。現行トレンド継続で累積CO2約2Gt削減、材料使用約24Gt削減、コスト約6800億ユーロ削減。高度な循環策でさらに排出38-48%、材料7-8%、コスト21%削減。金属は質量6%だが脱炭素・経済価値の90%を牽引。
English
Assesses circular strategies for construction and demolition waste (CDW) in EU27+4 from 2010-2050. Continuing current trends could cut cumulative emissions by ~2 Gt CO2-eq, material use by ~24 Gt, and costs by ~€680 billion. Advanced circularity could further reduce emissions by 38-48%, material use by 7-8%, and costs by 21%. Metals, only 6% of CDW mass, drive up to 90% of decarbonization and economic value.
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
日本では建設廃棄物のリサイクル率は高いが、サーキュラーエコノミー政策や脱炭素との統合が課題。本研究成果は、日本の建設分野のGX戦略や廃棄物処理政策に示唆を与える。
In the global GX context
Contributes to global circular economy and decarbonization scholarship by quantifying the climate and economic benefits of high-value CDW management, relevant for ISSB-aligned reporting and transition finance in the construction sector.
👥 読者別の含意
🔬研究者:Provides quantitative evidence on the decarbonization and economic potential of circular CDW management, useful for modeling and policy analysis.
🏢実務担当者:Highlights the value of advanced circularity measures in construction waste management, informing corporate sustainability strategies.
🏛政策担当者:Offers insights for designing coordinated policies that integrate data, technology, and incentives to promote systemic circularity.
📄 Abstract（原文）
Abstract Construction and demolition waste (CDW) offers opportunities for decarbonization, dematerialization, and economic gains through high-value-added circular management. Yet, most of this material is downcycled. This study assesses different CDW circularity strategies in the EU27 + 4 from 2010 to 2050. Results show that continuing current trends in waste management could reduce cumulative carbon emissions by ∼2 Gt CO2-eq, material use by ∼24 Gt, and costs by ∼€680 billion compared with virgin material use. Implementing advanced circularity measures could further reduce emissions by 38–48%, material use by 7–8%, and costs by 21%. Germany, the UK, France, and Italy contribute over 70% of these benefits due to their large building stocks. While metals represent only 6% of CDW mass, they drive up to 90% of decarbonization and economic value; minerals enable over 70% of dematerialization across all scenarios. Clean energy transitions may reduce circular economy's carbon advantage as primary production also decarbonizes. Coordinated policies integrating data, technology, incentives, and holistic targets are essential to realize systemic circularity.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.1021/acs.est.6c02401first seen 2026-09-05 05:57:54 · last seen 2026-09-13 05:37:04
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