globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2013297117
论文题名:
The quest for improved air quality may push China to continue its CO2reduction beyond the Paris Commitment
作者: Xing J.; Lu X.; Wang S.; Wang T.; Ding D.; Yu S.; Shindell D.; Ou Y.; Morawska L.; Li S.; Ren L.; Zhang Y.; Loughlin D.; Zheng H.; Zhao B.; Liu S.; Smith K.R.; Hao J.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:47
起始页码: 29535
结束页码: 29542
语种: 英语
英文关键词: Air quality ; China ; CO2 ; Cobenefit ; Energy policy
英文摘要: China is challenged with the simultaneous goals of improving air quality and mitigating climate change. The "Beautiful China" strategy, launched by the Chinese government in 2020, requires that all cities in China attain 35 μg/m3 or below for annual mean concentration of PM2.5 (particulate matter with aerodynamic diameter less than 2.5 μm) by 2035. Meanwhile, China adopts a portfolio of low-carbon policies to meet its Nationally Determined Contribution (NDC) pledged in the Paris Agreement. Previous studies demonstrated the cobenefits to air pollution reduction from implementing low-carbon energy policies. Pathways for China to achieve dual targets of both air quality and CO2mitigation, however, have not been comprehensively explored. Here, we couple an integrated assessment model and an air quality model to evaluate air quality in China through 2035 under the NDC scenario and an alternative scenario (Co-Benefit Energy [CBE]) with enhanced low-carbon policies. Results indicate that some Chinese cities cannot meet the PM2.5target under the NDC scenario by 2035, even with the strictest end-of-pipe controls. Achieving the air quality target would require further reduction in emissions of multiple air pollutants by 6 to 32%, driving additional 22% reduction in CO2emissions relative to the NDC scenario. Results show that the incremental health benefit from improved air quality of CBE exceeds 8 times the additional costs of CO2mitigation, attributed particularly to the cost-effective reduction in household PM2.5 exposure. The additional low-carbon energy polices required for China's air quality targets would lay an important foundation for its deep decarbonization aligned with the 2 °C global temperature target. © 2020 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163932
Appears in Collections:气候变化与战略

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作者单位: Xing, J., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Lu, X., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Wang, S., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Wang, T., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Ding, D., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Yu, S., Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD 20740, United States; Shindell, D., Nicholas School of the Environment, Duke University, Durham, NC 27708, United States; Ou, Y., US Environmental Protection Agency, Research Triangle Park, NC 27711, United States; Morawska, L., International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane City, QLD 4001, Australia; Li, S., School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, 430079, China; Ren, L., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Zhang, Y., Nicholas School of the Environment, Duke University, Durham, NC 27708, United States; Loughlin, D., US Environmental Protection Agency, Research Triangle Park, NC 27711, United States; Zheng, H., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Zhao, B., Pacific Northwest National Laboratory, Richland, WA 99352, United States; Liu, S., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China; Smith, K.R., Global Environmental Health, University of California, Berkeley, CA 94720, United States, Collaborative Clean Air Policy Centre, New Delhi, 110003, India; Hao, J., School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China, State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China

Recommended Citation:
Xing J.,Lu X.,Wang S.,et al. The quest for improved air quality may push China to continue its CO2reduction beyond the Paris Commitment[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(47)
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