Abstract The overlap in sources of greenhouse gas and local air pollutant emissions creates scope for policy measures to limit global warming and improve air quality simultaneously. In a first step, we derive estimates for the air pollution mortality-related component of the social cost of atmospheric release for 6 pollutants and 56 regions in the world. Combining these estimates with emission inventory data highlights that sector contributions to greenhouse gas emissions and air pollution health impacts differ widely across regions. Next, simulations of future emission pathways consistent with the 2 °C and 1.5 °C targets illustrate that strengthening climate policy ambition raises the total value of air quality co-benefits despite lower marginal co-benefits per tonne of greenhouse gas emissions abated. Finally, we use results from a multi-model ensemble to quantify and compare the value of health-related ambient air quality co-benefits of climate policy across sectors and regions. On the global level, overall air quality co-benefits range from $8 to $40 per tonne of greenhouse gases abated in 2030, with median across models and scenarios of $18/tCO 2 e. These results mask strong differentiation across regions and sectors, with median co-benefits from mitigation in the residential and service sectors in India exceeding $500/tCO 2 e. By taking a sector- and region-specific perspective, the results presented here reveal promising channels to improve human health outcomes and to ratchet up greenhouse gas reduction efforts to bridge the gap between countries’ pledges and the global targets of the Paris Agreement.

Toon Vandyck

Kimon Keramidas

Stéphane Tchung-Ming

Matthias Weitzel

Rita Van Dingenen

Climatic Change

气候变化致力于气候变率和变化问题的整体性——它的描述、原因、影响和它们之间的相互作用。该杂志的目的是为不同学科的工作人员就气候变化相关问题提供一种交流方式。这意味着作者有机会向其他气候相关学科的人们和感兴趣的非学科人员传达他们研究的精髓，以及报告原创性在于（不一定是原创的）组合的研究来自多个学科的工作。该杂志还包括充满活力的社论和书评部分。

The journal "Climatic Change" focuses on the various aspects of climate change, including its description, causes, impacts, and their interrelations. The aim of the journal is to provide a platform for researchers from different disciplines to communicate about issues related to climate change. This allows authors to convey the essence of their research to other climate-related scholars and interested non-specialists. Additionally, the journal features a vibrant section of editorials and book reviews, showcasing the originality and interdisciplinary nature of the research.

《Climatic Change》期刊专注于气候变化的各个方面，包括气候变化的描述、成因、影响及其相互关系。该期刊旨在为来自不同学科的研究人员提供一个交流平台，以探讨与气候变化相关的问题。这意味着作者可以向其他气候相关学科的研究者以及对这些问题感兴趣的非专业人士传达他们研究的核心内容。此外，期刊还包含活跃的社论和书评部分，展示多学科研究的原创性和综合性。

Category	Quartile
环境科学与生态学	2
环境科学与生态学, 环境科学	2
环境科学与生态学, 气象与大气科学	2

Quantifying air quality co-benefits of climate policy across sectors and regions

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Journal Info

Category	Quartile
METEOROLOGY & ATMOSPHERIC SCIENCES	1