Circular economy and decarbonization reshape appliance material demand and emissions in Europe
循環経済と脱炭素化が欧州の家電材料需要と排出を再形成する (AI 翻訳)
Adriana Gómez-Sanabria, Xiaoyang Zhong, Alessio Mastrucci, Sara Giorgi, Pallav Purohit, Volker Krey
🤖 gxceed AI 要約
日本語
家電の材料需要とGHG排出を、ストック回転モデルと統合評価モデルで2020-2050年にわたり欧州で評価。循環経済戦略だけで材料需要を最大45%削減し、排出を24%削減。エネルギー効率と電力脱炭素化を組み合わせると排出削減は93%に達する。統合的アプローチの必要性を示す。
English
This study integrates a dynamic appliance stock-turnover model with integrated assessment modeling to evaluate material flows and life-cycle GHG emissions of household appliances in Europe through 2050. Circular economy strategies alone can reduce material demand by up to 45% and emissions by 24%, but combining with energy efficiency and electricity decarbonization achieves 93% emission reductions. Integrated policies are essential for deep decarbonization.
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
日本では家電リサイクル法や循環経済ビジョンが進むが、本論文は材料需要と排出の統合評価の重要性を示し、日本の家電業界や政策立案者に示唆を与える。特に、省エネと再エネ導入だけでは不十分で、製品寿命延長やリサイクル強化を組み合わせた政策が必要と示す点が参考になる。
In the global GX context
This paper provides robust quantitative evidence for the EU that circular economy strategies alone are insufficient for deep decarbonization, aligning with global discussions on integrating circularity into climate policy. It offers a methodological framework applicable to other regions and supports the need for coordinated policies across material efficiency, energy efficiency, and renewable energy.
👥 読者別の含意
🔬研究者:Provides a novel integrated modeling approach linking circular economy and decarbonization, useful for future research on material flows and emissions.
🏢実務担当者:Highlights the need for appliance manufacturers to design for longevity and recyclability to meet future regulatory and market demands.
🏛政策担当者:Demonstrates that circular economy policies must be combined with energy and climate policies to achieve significant emission reductions.
📄 Abstract（原文）
Abstract Household appliances are a rapidly growing source of material demand, greenhouse gas (GHG) emissions, and electronic waste. Yet, the combined contribution of circular economy strategies and energy-system decarbonization to reducing their environmental footprint remains poorly quantified. Here, we integrate a dynamic appliance stock-turnover model with integrated assessment modelling to evaluate future material flows and life-cycle GHG emissions of household appliances across the European Union EU27, Norway, Switzerland, and the United Kingdom between 2020 and 2050. We find that under current conditions, material demand, energy demand and CO 2 emissions will continue to grow. Circular economy strategies alone can reduce material demand by up to 45%, material outflows by 48%, and provide secondary materials equivalent to 56% of primary material demand, while lowering life-cycle GHG emissions by 24% relative to a reference scenario. Combining circularity with energy efficiency and electricity-system decarbonization increases emission reductions to 93% by 2050. The effectiveness of individual circular strategies differs across appliance types, reflecting variations in stock dynamics, material intensity, and use patterns. Our results show that neither circularity nor energy efficiency measures and clean energy alone is sufficient to achieve deep decarbonization. Instead, substantial climate and resource benefits require integrated policies that combine demand reduction, longer product lifetimes, improved recycling, energy efficiency, and low-carbon electricity systems.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.21203/rs.3.rs-10480513/v1first seen 2026-07-31 07:22:45 · last seen 2026-08-02 06:57:22
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