中国の2035年NDCにおける地域間の緩和効果のタイムラグによる重大な近期限界的不平等
Significant Near-Term Inequity under China’s 2035 NDC due to a Time Lag in Mitigation Effects across Regions (原題)
Zeyuan Liu, Yihao Wang, Jinchi Dong, Deming Huang, Yi Zhang
🤖 gxceed AI 要約
日本語
中国の2035年NDCが気候変動緩和と大気質改善の同時目標に与える影響を、統合モデルで地域別・時系列的に評価。NDCにより2025～2060年で総便益が1.5兆ドル増加する一方、短期的には石炭火力増加や植林による土壌炭素放出で、特に低開発地域で気候便益が減少する不公平が生じる。長期的には全地域に便益が及ぶが高所得地域に集中。早期植林や非CO2削減、補償メカニズムの必要性を示す。
English
This study evaluates China's 2035 NDC impacts on climate and air quality co-benefits using an integrated model, finding a net benefit increase of $1.5 trillion over 2025-2060. However, near-term climate benefits decline in underdeveloped regions due to increased coal power and soil carbon release from afforestation, causing inequity. Long-term benefits are widespread but concentrated in high-income regions. The authors recommend earlier afforestation, non-CO2 abatement, and compensation mechanisms.
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
中国のNDC政策評価は、日本のGX政策やアジア地域の排出削減戦略を考える上で参考になる。特に、再生可能エネルギー導入に伴う石炭火力の役割や、地域間の不公平是正のための政策設計は、日本のエネルギー政策や国際協力に示唆を与える。
In the global GX context
This paper provides empirical evidence on the regional and temporal trade-offs of climate policy, relevant to global discussions on just transition and policy coherence. It highlights the need for compensation mechanisms and integrated policy design, which are key considerations for ISSB-aligned transition planning and international climate finance.
👥 読者別の含意
🔬研究者:Provides a modeling framework for assessing regional and temporal distribution of climate policy benefits, useful for just transition research.
🏢実務担当者:Highlights the importance of considering regional inequities and co-benefits in corporate transition planning and supply chain risk assessment.
🏛政策担当者:Offers evidence on the need for compensation mechanisms and policy sequencing to ensure equitable outcomes under NDCs.
📄 Abstract（原文）
Abstract China has submitted its Nationally Determined Contribution (NDC) toward 2035, potentially promoting its simultaneous goals of mitigating climate change and improving air quality. Yet, the effects of this NDC remain unclear across regions and over time. By using an integrated modeling framework, we show that the NDC increases the net benefits of these simultaneous goals by 1500.5 billion USD over 2025–2060, with significant heterogeneity across space and time. In the near term, the NDC reduces climate benefits, particularly in underdeveloped regions, primarily due to increased coal-based power generation needed to balance renewable intermittency and soil organic carbon release by rapid afforestation. In the long term, the NDC generates 3924.3 billion USD in climate benefits and 1659.5 billion USD in health cobenefits, benefiting all regions, although remaining concentrated in high-income regions. Extra measures are needed to enhance policy coherence under the NDC target, with earlier afforestation, non-CO2 abatement, and compensation mechanisms being central.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.est.6c06024first seen 2026-09-08 04:43:34
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