Marine fuel choices and related life-cycle environmental impacts under global shipping policies
海運政策下における船舶燃料の選択とライフサイクル環境影響 (AI 翻訳)
1 CUBE
🤖 gxceed AI 要約
日本語
本研究では、全球エネルギーシステムモデルを用いて、異なる海運政策下でのエネルギー転換とライフサイクル環境影響を評価。IMOのネットゼロ枠組みの延期は2040年までにバイオ燃料を40%に増やすが、ネットゼロ目標達成には不十分。課徴金と燃料基準の組み合わせは低炭素燃料の導入を加速し、アンモニアが60%の燃料シェアを達成。アンモニアはCCS付きバイオエネルギーからの製造が重要だが、土地利用や資源枯渇など他の環境影響を増大させるリスクも示唆。
English
This study uses a global energy system model to assess energy transitions in shipping under different policies. A postponed IMO net-zero framework could increase biofuel use to 40% by 2040 but may miss net-zero targets, while a combined levy and fuel standard accelerates low-carbon fuel adoption, achieving 60% ammonia penetration. Ammonia from bioenergy with carbon capture (BECCS) is crucial but risks increasing other environmental impacts like land use and mineral depletion.
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
日本は世界有数の海運国であり、IMO規制や燃料転換の動向は日本企業の競争力に直結する。本論文は、課徴金と燃料基準の組み合わせがアンモニア導入を促進する政策効果を示しており、日本の海運脱炭素化戦略や関連インフラ投資の検討に示唆を与える。
In the global GX context
This paper provides critical insights for the IMO's net-zero framework debate, demonstrating that a combination of levy and fuel standards is more effective than delayed targets. It highlights the trade-offs in life-cycle impacts, which are essential for ISSB-aligned transition risk disclosure and for global shipping decarbonization pathways.
👥 読者別の含意
🔬研究者:The study provides a rigorous model-based comparison of policy mechanisms and their life-cycle trade-offs, useful for further research on cross-sector energy competition.
🏢実務担当者:Shipping companies can use these findings to assess fuel transition strategies under different policy scenarios, particularly the role of ammonia and electrification.
🏛政策担当者:Policymakers should note the effectiveness of combined levy and fuel standards in driving low-carbon fuel adoption and the potential for negative emissions via BECCS.
📄 Abstract（原文）
Shipping is a transnational sector competing for energy on a global market and needs effective policies to decarbonize. Here we assess energy transitions under different shipping policies using a sector-coupled global energy system model and connected life-cycle environmental impacts. We find that postponed International Maritime Organization’s ‘net-zero framework’ could increase biofuel use in shipping to 40% by 2050 but might fall short of net-zero targets, which require broader adoption of low-carbon fuels. A combined levy and global fuel standards mechanism accelerates low-carbon fuel adoption, achieving 60% of ammonia penetration as marine fuel. Ammonia emerges as most cost-effective fuel under cross-sectoral competition for several assessed policies, whereas electrification is preferred for vessels with daily bunkering possibilities. To reach global climate targets, ammonia from bioenergy with carbon capture (yielding negative emissions) and e-ammonia are found potentially crucial for shipping. However, this transition risks increasing other environmental impacts, including land use and mineral resource depletion.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/20627237first seen 2026-06-18 04:14:11
🔔 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。