Greenhouse Gas Emissions of Global Construction Industries
世界の建設産業における温室効果ガス排出量 (AI 翻訳)
Robert H. Crawford
🤖 gxceed AI 要約
日本語
本研究はEXIOBASE3を用いた多地域産業連関分析と構造経路分析により、44カ国の建設セクターの体化排出量を分析した。排出原単位は0.165〜2.05 kgCO2e/Euroと国により大きな差があり、鉄鋼とコンクリート生産が主要な排出源であることを特定した。建設サプライチェーンの排出ホットスポットを明らかにし、脱炭素対策の優先順位付けに資する。
English
Using multi-regional input-output analysis and structural path analysis on EXIOBASE3, this study assesses embodied GHG emissions of construction sectors in 44 countries. Emissions intensity varies widely (0.165–2.05 kgCO2e/Euro), with concrete and steel production as key hotspots—offering an evidence base for prioritizing construction supply-chain 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
日本の建設業界ではSSBJ開示やサプライチェーン排出量の算定が進む中、本分析は建設サプライチェーンの排出構造を定量的に示し、鉄鋼・コンクリート上流排出への対応やグリーン調達の優先度決定に有用である。
In the global GX context
Amid ISSB/CSRD requirements for Scope 3 reporting, this multi-regional IO analysis provides a systematic method and benchmark data for construction supply chains. Identifying concrete and steel as dominant hotspots aligns with global low-carbon materials and green procurement initiatives.
👥 読者別の含意
🔬研究者:Provides cross-country benchmarks of construction emissions intensity and a methodological template (MRIO+SPA) for supply-chain hotspot analysis.
🏢実務担当者:Construction firms can use the sector-level emissions intensity and hotspot findings to prioritize Scope 3 reduction efforts and supplier engagement, particularly for concrete and steel.
🏛政策担当者:Highlights where policy interventions in materials and procurement can achieve the greatest emissions reductions in construction.
📄 Abstract（原文）
Abstract The global construction industry is responsible for considerable effects on the environment and society. The construction and use of our built environment accounts for 39% of global greenhouse gas emissions. Population growth and rising standards of living are further exacerbating these problems. Understanding the contribution of construction industries and those activities responsible for the greatest share of greenhouse gas emissions is crucial in order to identify opportunities for emissions mitigation. This study uses multi-regional input-output analysis to analyse the embodied greenhouse gas emissions of global construction industries. A structural path analysis (SPA) was conducted for the construction sectors of 44 countries using top-down economic input-output data from EXIOBASE3. The findings were analysed to compare the embodied greenhouse gas emissions of each construction sector to ascertain their emissions intensity. The structural path analysis was used to disaggregate each sector into unique nodes or pathways, with each representing a single or group of activities and their associated emissions. This was used to identify critical hot spots of emissions within the various construction supply chains. The results show that there is wide discrepancy between the emissions intensity of the construction industry for the 44 countries, ranging from 0.165 kgCO 2 e/Euro to 2.05 kgCO 2 e/Euro. In addition, the most significant contributors to emissions for the most emissions intensive countries are the production of concrete and steel. This in-depth analysis of global construction industries using multi-regional input-output data provides critical information needed to identify opportunities for reducing global construction-related greenhouse gas emissions. This will help prioritise future emissions reduction efforts within the construction industry and target specific solutions to achieve the greatest improvements to the overall environmental performance of global construction industries.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1088/1757-899x/1218/1/012047first seen 2026-08-02 17:35:41
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