← 論文一覧に戻る

現実の問題、誤った修正：EU ETSから見る排出権取引制度における炭素回収・利用（CCU）の扱い

Real Problem, Misguided Fix: Insights from the EU ETS on Carbon Capture and Utilisation under Cap and Trade Systems (原題)

Claudia Günther, Darius Sultani, Michael Pahle, Andreas Löschel

Crossrefプレプリント2026-01-01#炭素価格Origin: EU経営インパクト: 調達リスク対象セクター: cross_sector
DOI: 10.2139/ssrn.7001780
原典: https://doi.org/10.2139/ssrn.7001780

🤖 gxceed AI 要約

日本語

排出権取引制度（ETS）の拡大に伴い、非永続的な炭素回収・利用（CCU）の扱いが課題となっている。EU ETS第5期見直しを事例に、排出枠免除を求める4つの主張を検証し、いずれも広範な免除を正当化しないことを示した。CCU製品の多くは炭素貯蔵期間が短く、除去効果は限定的で、水浴効果が代替効果を相殺する。より適切な政策手段として、原料炭素価格付けや永続的CCUの拡大、廃棄物焼却のETS組み入れ等を提案する。

English

As emissions trading systems expand globally, the treatment of non-permanent carbon capture and utilisation (CCU) under cap-and-trade schemes is a recurring policy challenge. Using the EU ETS fifth-phase review as a case study, this paper tests four stakeholder claims for allowance-surrender exemptions and finds none justify broad exemptions for non-permanent fossil CCU. Most CCU products store carbon too briefly, removal claims apply only to a narrow biogenic subset, and the waterbed effect neutralises substitution. The authors propose more suitable instruments: feedstock carbon pricing, careful expansion of permanent CCU, including waste incineration in the EU ETS, and industrial policy for CCU infrastructure.

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、GXリーグや排出量取引制度の本格導入が検討される中、CCUの扱いは重要な論点となる。本論文の分析は、日本の制度設計において、非永続的CCUへの過度な免除を避け、効果的な政策手段を選択するための示唆を提供する。

In the global GX context

This paper provides critical insights for global ETS design, particularly for jurisdictions like the EU and others expanding cap-and-trade systems. It challenges the rationale for broad CCU exemptions and offers alternative policy instruments, contributing to the ongoing debate on carbon pricing and CCU integration in climate policy.

👥 読者別の含意

🔬研究者:Provides a rigorous analytical framework for evaluating CCU treatment in ETS, useful for further research on carbon pricing and CCU policy.

🏢実務担当者:Offers guidance for companies involved in CCU projects on the regulatory landscape and the importance of permanent storage.

🏛政策担当者:Highlights the pitfalls of broad CCU exemptions and suggests more effective policy instruments for integrating CCU into ETS.

📄 Abstract（原文）

Emissions trading systems are expanding globally, and a recurring policy challenge is how to treat non-permanent carbon capture and utilisation (CCU) within cap-and-trade schemes. Using the European Emissions Trading System’s fifth-phase review as a case study, we identify four stakeholder claims for granting allowance-surrender exemptions: that CCU delays emissions, delivers carbon removal, substitutes virgin fossil feedstocks, and forms a defossilisation pathway for hard-to-abate sectors. We find that none justifies broad allowance exemptions for non-permanent fossil CCU. Most CCU products store carbon for too short a time to deliver material climate benefits; the removal claim applies only to a narrow biogenic subset; and ETS waterbed effect neutralises the substitution effect. Finally, while fossil CCU may serve as an infrastructural precursor to CCS in hard-to-abate sectors, the EU ETS lacks the coordinating capacity to manage such a transition effectively. We identify more suitable policy instruments than allowance exemptions, including feedstock carbon pricing, the careful expansion of recognised permanent CCU applications, the inclusion of waste incineration in the EU ETS, and industrial policy to align CCU infrastructure with long-term carbon management.

🔗 Provenance — このレコードを発見したソース

🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。

gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。