Industrial CO2 Emissions, Climate Change, and Human Health: Decarbonization Pathways in Iron and Steel Production
産業用CO2排出、気候変動、および人間の健康：鉄鋼生産における脱炭素化経路 (AI 翻訳)
Dominik Dubec, Marek Šolc, Kristína Kovalčíková, Joanna Furman, Kuczyńska-Chałada Marzena
🤖 gxceed AI 要約
日本語
鉄鋼業は世界のCO2排出の7-9%を占める。本レビューは、水素直接還元、CCUS、電化などの脱炭素化経路とその制約（低炭素電力、水素供給、政策枠組み）を体系的に評価し、技術的準備だけでは不十分でエネルギーシステムと政策の連携が必要と結論付ける。また、大気汚染低減による健康共便益にも注目する。
English
This review examines decarbonization pathways for the iron and steel industry, which accounts for 7-9% of global CO2 emissions. It evaluates hydrogen-based direct reduction, CCUS, electrification, and efficiency improvements, highlighting constraints such as low-carbon electricity availability, hydrogen supply, and policy alignment. The paper emphasizes that technological readiness alone is insufficient and that health co-benefits from reduced air pollution are significant.
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
日本の鉄鋼業（日本製鉄、JFEなど）はGX戦略の重要セクター。本論文で扱われる水素還元（COURSE50など）やCCUSは、日本の脱炭素ロードマップに直結する。また、健康便益の観点は、有報や統合報告書での非財務情報開示に新たな視点を提供する。
In the global GX context
This paper is highly relevant to global climate disclosure and transition finance, as the steel industry is a hard-to-abate sector central to ISSB-aligned transition plans. The review provides a comprehensive framework for evaluating technology pathways and constraints, which can inform corporate disclosure of transition risks and opportunities under TCFD and CSRD. The health co-benefits aspect adds a novel angle for stakeholder communication.
👥 読者別の含意
🔬研究者:Provides a structured synthesis of steel decarbonization pathways and their interdependencies with energy systems and policy.
🏢実務担当者:Offers a strategic overview of technology options and constraints useful for corporate transition planning and scenario analysis.
🏛政策担当者:Highlights the need for policy alignment across energy, hydrogen, and carbon pricing to enable deep decarbonization in steel.
📄 Abstract（原文）
The iron and steel industry is one of the most energy- and emission-intensive industrial sectors, accounting for approximately 95% of global metal production and 7–9% of global CO2 emissions. Its decarbonization is therefore central to climate change mitigation and has potential co-benefits for environmental quality and human health through reductions in air pollutants associated with conventional coal-based steelmaking. This review addresses the following question: which technological and systemic pathways can reduce emissions from iron and steel production, and what constraints limit their deployment across regions? The article synthesizes current knowledge on the dominant blast furnace–basic oxygen furnace and electric arc furnace routes, their emission intensities, and their role in global steel production. It then evaluates two complementary groups of decarbonization pathways: optimization of existing carbon-intensive processes and the transition to low- and near-zero-carbon technologies, including hydrogen-based direct reduction, electrification, carbon capture, utilization and storage. Particular attention is given to the dependence of these pathways on low-carbon electricity, hydrogen availability, scrap supply, infrastructure, policy frameworks, and regional economic conditions. The review highlights that technological readiness alone is insufficient to ensure deep decarbonization; implementation depends on the alignment of energy systems, industrial investment cycles, and climate policy. From a public health perspective, steel decarbonization should be understood as a climate mitigation measure with potential health co-benefits, particularly where it reduces both greenhouse gas emissions and local air pollution.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.3390/greenhealth2020016first seen 2026-06-03 05:51:43
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