Low-carbon energy policies benefit climate change mitigation and air pollutant reduction in megacities: An empirical examination of Shenzhen, China

Jiang, Jingjing1; Ye, Bin2; Sun, Zhuoluo1; Zeng, Zhenzhong2; Yang, Xin2

2023-09-20

10.1016/j.scitotenv.2023.164644

SCIENCE OF THE TOTAL ENVIRONMENT   影响因子和分区

0048-9697

1879-1026

The low-carbon transformation of energy system has great significance for megacities to mitigate climate change, which brings co-benefits to improve urban air quality. Taking China's megacity, Shenzhen, as an example, this study examines the potential of wide-ranging energy policies in urban GHG emission reduction and the associated synergis-tic effect on decreasing major air pollutant emissions. Based on the low emissions analysis platform (LEAP) model, the major results show that an effective implementation of newly emerging energy policies could help cap GHG emissions of Shenzhen in 2025 and nearly halve them by 2035, which would contribute substantially to reducing urban air pollutant emissions. At the sectoral level, the synergistic effect of emission reduction would be the strongest in the transportation sector, followed by the electricity and manufacturing sectors, while it is not significant in the building sector. Moreover, all policies on energy efficiency improvement and demand management that reduce fossil energy consumption show synergistic effects on decreasing air pollutants, while policies on energy structural optimization show differentiated impacts across SO2, NOx, VOCs, and PM2.5. Urban managers should prioritize energy policies with strong synergistic effects and specifically promote the wide application of rooftop PV system and deep electrifi-cation of road transportation.

Low-carbon energy policies GHG emissions Air pollutants Synergistic effect Megacities

SCI

英语

通讯

National Social Science Foundation of China[20CGL036] ; National Natural Science Foundation of China[72173058] ; Shenzhen's Science and Technology Planning Project["JCYJ20190806144415100","JCYJ20190809162809440"]

Environmental Sciences & Ecology

Environmental Sciences

WOS:001019694500001

ELSEVIER

ENVIRONMENT/ECOLOGY

Web of Science

1.Harbin Inst Technol Shenzhen, Sch Econ & Management, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China

Jiang, Jingjing,Ye, Bin,Sun, Zhuoluo,et al. Low-carbon energy policies benefit climate change mitigation and air pollutant reduction in megacities: An empirical examination of Shenzhen, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,892.

Jiang, Jingjing,Ye, Bin,Sun, Zhuoluo,Zeng, Zhenzhong,&Yang, Xin.(2023).Low-carbon energy policies benefit climate change mitigation and air pollutant reduction in megacities: An empirical examination of Shenzhen, China.SCIENCE OF THE TOTAL ENVIRONMENT,892.

Jiang, Jingjing,et al."Low-carbon energy policies benefit climate change mitigation and air pollutant reduction in megacities: An empirical examination of Shenzhen, China".SCIENCE OF THE TOTAL ENVIRONMENT 892(2023).