气候变化领域集成服务门户(CCPortal): Climate effects of China's efforts to improve its air quality

CCPortal

DOI	10.1088/1748-9326/ab9e21
	Climate effects of China's efforts to improve its air quality
	Zheng Y.; Zhang Q.; Tong D.; Davis S.J.; Caldeira K.
发表日期	2020
ISSN	17489318
卷号	15 期号:10
英文摘要	Facing severe air pollution issues, China has implemented a series of clean air policies aimed to improve the country's air quality. These policies largely focused on reducing emissions of major air pollutants such as sulfur dioxide (SO2) and primary aerosols. However, changes in such pollution also affect radiative forcing. To understand the climate consequences of these clean air actions in China, we evaluate the near-equilibrium climate response to sustained changes in aerosol (and precursors) emission rates equivalent to those that occurred in China between 2006 and 2017. During this period, China's SO2 emissions declined by ∼70%, and black carbon emissions declined by ∼30%. Climate simulations that used a fully coupled ocean and atmosphere climate model indicate that China's reductions in aerosol emission rates from 2006 to 2017 may exert a net increase in global radiative forcing of 0.09 ± 0.03 W m−2 and a mean warming of 0.12 ± 0.01 ◦C in the Northern Hemisphere; and may also affect the precipitation rates in East Asia and in more distant regions. The success of Chinese policies to further reduce aerosol emissions may bring additional net warming, and this 'unmasked' warming would in turn compound the challenge and urgency of international climate mitigation efforts. © 2020 The Author(s). Published by IOP Publishing Ltd
英文关键词	Aerosol emission; Clean air policy; Climate change
语种	英语
scopus关键词	Aerosols; Air quality; Atmospheric radiation; Particulate emissions; Sulfur dioxide; Aerosol emission rates; Black carbon emission; Climate mitigations; Climate simulation; Northern Hemispheres; Precipitation rates; Radiative forcings; Reducing emissions; Climate models; aerosol; air quality; atmospheric pollution; black carbon; climate effect; climate modeling; radiative forcing; spatiotemporal analysis; China
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153663
作者单位	Center of Air Quality Simulation and System Analysis, Chinese Academy of Environmental Planning, Beijing, 100012, China; Department of Global Ecology, Carnegie Institution for Science, Stanford, CA 94305, United States; Department of Earth System Science, Tsinghua University, Beijing, 100084, China; Department of Earth System Science, University of California, Irvine, Irvine, CA 92697, United States
推荐引用方式 GB/T 7714	Zheng Y.,Zhang Q.,Tong D.,et al. Climate effects of China's efforts to improve its air quality[J],2020,15(10).
APA	Zheng Y.,Zhang Q.,Tong D.,Davis S.J.,&Caldeira K..(2020).Climate effects of China's efforts to improve its air quality.Environmental Research Letters,15(10).
MLA	Zheng Y.,et al."Climate effects of China's efforts to improve its air quality".Environmental Research Letters 15.10(2020).