二酸化炭素除去のための強化岩石風化：可能性・課題・拡張可能で持続可能な実施への道筋に関する統合的レビュー
Enhanced Rock Weathering for Carbon Dioxide Removal: An Integrated Review of Potential, Challenges, and Pathways to Scalable and Sustainable Implementation (原題)
Lebeza Alemu Moges, Yunlu Hou, 桂珍 刘, Nosheen Rahman, Qian Ma, Qi Li
🤖 gxceed AI 要約
日本語
強化岩石風化（ERW）のCO2除去ポテンシャルを地球化学・農学・経済・政策の観点から統合的にレビューした論文。2050年までに年間0.5〜2ギガトンの除去と農作物収量7〜20%増が見込まれる一方、重金属リスクやコスト、規制の課題を指摘。標準化されたMRV枠組みや長期フィールド試験の必要性を提言する。
English
This integrated review assesses enhanced rock weathering (ERW) as a CO2 removal strategy, estimating 0.5–2 Gt CO2/yr removal potential by 2050 and 7–20% crop yield gains. It examines technical, environmental, economic and regulatory barriers, reframing heavy-metal risk as an optimization problem and weighing scalability against permanence. It calls for standardized MRV frameworks, spatially resolved techno-economic and life-cycle assessments, and long-term field trials.
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
ERWは日本のカーボンクレジット・GX推進やネガティブエミッション技術戦略に関わるが、国内実装事例は限定的。MRV標準化の議論はSSBJや排出量報告の枠組み整備に示唆を与える。
In the global GX context
ERW sits within the emerging CDR and negative-emissions landscape relevant to ISSB/CSRD disclosure of removal credits and MRV integrity. The review's emphasis on standardized MRV and permanence trade-offs speaks directly to global carbon-removal accounting and governance debates.
👥 読者別の含意
🔬研究者:ERWの研究課題とMRV・LCA手法のギャップを体系的に把握できる。
🏢実務担当者:CDRクレジット調達や除去量報告を検討する企業が、MRVと永続性の論点を理解する助けになる。
🏛政策担当者:ERWの規制・MRV枠組み設計と倫理的ガバナンスの論点を政策検討に活用できる。
📄 Abstract（原文）
Abstract Enhanced rock weathering is an emerging CO2 removal strategy with considerable potential to mitigate climate change while providing additional agricultural and environmental benefits. By 2050, enhanced rock weathering has a global CO2 removal potential of 0.5–2 gigatons of CO2 annually and can increase crop yields on agricultural land by 7 to 20%. However, large-scale implementation encounters technical, environmental, economic, and regulatory challenges. In this review, we consolidate research from geochemistry, agronomy, economics, environmental science, and policy to present an integrated analysis. We outline novel analytical approaches, including reframing heavy-metal risk as an optimization challenge and critically evaluating the scalability–permanence trade-off in CO2 removal portfolios. In this review, we identify strategic future research needs to support enhanced rock weathering’s role as a transformative solution for climate and sustainability. Key research needs include optimizing particle size while minimizing comminution energy requirements; evaluating the long-term accumulation, mobility, and ecological effects of potentially toxic elements; developing spatially resolved techno-economic and life-cycle assessments; establishing standardized and scalable MRV frameworks; and implementing coordinated, long-term field trials across geographically and pedo-climatically diverse environments. Addressing these challenges will be essential to determine enhanced rock weathering’s potential contribution to climate mitigation and to define the environmental and economic conditions under which deployment can scale responsibly. This review serves as a foundational resource for researchers, policymakers, and practitioners seeking a comprehensive understanding of enhanced rock weathering. It identifies persistent knowledge gaps and proposes an ethical framework to guide future large-scale implementation and governance.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.energyfuels.6c04883first seen 2026-11-06 05:04:26
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