The 2022 report of synergetic roadmap on carbon neutrality and clean air for China: Accelerating transition in key sectors

Lei, Yu; Yin, Zhicong; Lu, Xi; Zhang, Qiang; Gong, Jicheng; Cai, Bofeng; Cai, Cilan; Chai, Qimin; Chen, Huopo; Chen, Renjie; Chen, Shi; Chen, Wenhui; Cheng, Jing; Chi, Xiyuan; Dai, Hancheng; Feng, Xiangzhao; Geng, Guannan; Hu, Jianlin; Hu, Shan; Huang, Cunrui; Li, Tiantian; Li, Wei; Li, Xiaomei; Liu, Jun; Liu, Xin; Liu, Zhu; Ma, Jinghui; Qin, Yue; Tong, Dan; Wang, Xuhui; Wang, Xuying; Wu, Rui; Xiao, Qingyang; Xie, Yang; Xu, Xiaolong; Xue, Tao; Yu, Haipeng; Zhang, Da; Zhang, Ning; Zhang, Shaohui; Zhang, Shaojun; Zhang, Xian; Zhang, Xin; Zhang, Zengkai; Zheng, Bo; Zheng, Yixuan; Zhou, Jian; Zhu, Tong; Wang, Jinnan; He, Kebin

doi:10.1016/j.ese.2023.100335

Cited by 11 publications

(4 citation statements)

References 68 publications

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“…Nevertheless, recent research suggests that by following the carbon neutrality pathway, the impacts of AA reduction on climate and extreme weather events could far outweigh those of GHGs (Wang et al, 2023;Yang et al, 2023). Despite these complexities, several countries are actively developing synergistic pathways toward carbon neutrality and clean air (Lei et al, 2024). Achieving these goals by the mid-21st century could substantially mitigate the extreme ocean warming risks stemming from both GHG and AA.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Future Slower Reduction of Anthropogenic Aerosols Enhances Extratropical Ocean Surface Warming Trends

Gu,

Gan,

Cai

et al. 2024

Geophysical Research Letters

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Global surface temperature short‐term trends fluctuate between cooling and fast‐warming under the combined action of external forcing and internal variability, significantly influencing the detectability of near‐term climate change. A key driver of these variations is anthropogenic aerosols (AAs), which have undergone a non‐monotonic evolution with rapid reduction in recent decades. However, their reduction is projected to decelerate under a high carbon emission scenario, yet the impact on surface temperature trends remains unknown. Here, using initial‐perturbation large ensembles, we find that future slowdown in AA reduction over Europe and North America expedites the subpolar North Atlantic surface warming by intensifying the Atlantic meridional overturning circulation. Further, it accelerates the South Indian Ocean and Southern Ocean surface warming through positive low‐cloud feedback and oceanic dynamical adjustment, triggered by the poleward migration of westerlies under interhemispheric energy constraint. These AA‐driven warmings exacerbate greenhouse warming, significantly enhancing the detectability of local decadal warming trends.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Future Slower Reduction of Anthropogenic Aerosols Enhances Extratropical Ocean Surface Warming Trends

Gu,

Gan,

Cai

et al. 2024

Geophysical Research Letters

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“…Air pollution is a global environmental concern that can pose substantial adverse impacts on climate change and human health. − In China, severe PM 2.5 pollution has been considerably alleviated due to rigorous emission control measures but remains a significant concern. − This is especially evident in the North China Plain (NCP), where severe PM 2.5 pollution events continue to occur frequently. − Additionally, O 3 levels have continued to show a steady upward trend on a global scale in recent years, gradually replacing PM 2.5 as the most important air pollutant. − The frequent occurrence of double-high level pollution events, where both PM 2.5 and O 3 concentrations exceeded the national air quality standards simultaneously, have been observed in the NCP. − Hence, there is an urgent need to address such pollution issues by reducing both PM 2.5 and O 3 pollution synergistically.…”

Section: Introductionmentioning

confidence: 99%

Unexpected Trade-Offs of Fossil Fuel Reduction on PM_2.5 and O₃ Pollution Regulation Can Be Offset by Synergistic Control of VOCs Source

Shi,

Yu,

et al. 2024

ACS EST Air

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Particulate matter (PM2.5) and ozone (O3) are typical air pollutants that require effective simultaneous control. Current PM2.5 and O3 co-mitigation strategies are primarily focused on the emission optimization of nitrogen oxides (NO x ) and volatile organic compounds (VOCs); however, fundamental mechanisms underlying these co-mitigation efforts remain largely unanswered. Here, utilizing an atmospheric chemistry model combined with machine learning technique, we extend the scope of coordinated control efforts beyond just precursors by identifying and controlling common sources of PM2.5 and O3, which are fossil fuel combustion sources including coal combustion, industrial emission, and vehicle exhausts. We conducted further sensitivity simulations and found that reducing fossil fuel combustion emissions significantly lowers PM2.5 levels but has trade-off effects on O3 control, which is attributable to the suppressed aerosol sink of hydroperoxyl radicals and the enhanced atmospheric oxidizing capacity. Furthermore, this unexpected enhancement of O3 can be offset by synergistically controlling certain other specific VOCs sources. For example, during days with high levels of both PM2.5 and O3 pollution, a 40% reduction of VOCs sources at the corresponding level of coal combustion reduction is predicted to lead to an ∼13 ppb (∼14%) reduction in O3 concentration. Our results provide the scientific evidence and theoretical framework for mitigating PM2.5 and O3 pollution through joint control of fossil fuel combustion sources and specific VOCs sources.

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“…根据全球疾病负担研究 [4] , 2019年, 全球约有 36.5万的过早死亡和621万的伤残调整寿命年可以归因于环境臭氧暴露. 2021和2022年我国臭氧的长期和短期暴露导致的成人过早死亡人数分别为13万和8万 [5] .…”

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臭氧和温度交互作用及其协同健康影响研究进展

Zhang,

Yao,

Jia

et al. 2024

Chin. Sci. Bull.

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The 2022 report of synergetic roadmap on carbon neutrality and clean air for China: Accelerating transition in key sectors

Cited by 11 publications

References 68 publications

Future Slower Reduction of Anthropogenic Aerosols Enhances Extratropical Ocean Surface Warming Trends

Future Slower Reduction of Anthropogenic Aerosols Enhances Extratropical Ocean Surface Warming Trends

Unexpected Trade-Offs of Fossil Fuel Reduction on PM_2.5 and O₃ Pollution Regulation Can Be Offset by Synergistic Control of VOCs Source

臭氧和温度交互作用及其协同健康影响研究进展

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The 2022 report of synergetic roadmap on carbon neutrality and clean air for China: Accelerating transition in key sectors

Cited by 11 publications

References 68 publications

Future Slower Reduction of Anthropogenic Aerosols Enhances Extratropical Ocean Surface Warming Trends

Future Slower Reduction of Anthropogenic Aerosols Enhances Extratropical Ocean Surface Warming Trends

Unexpected Trade-Offs of Fossil Fuel Reduction on PM2.5 and O3 Pollution Regulation Can Be Offset by Synergistic Control of VOCs Source

臭氧和温度交互作用及其协同健康影响研究进展

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Unexpected Trade-Offs of Fossil Fuel Reduction on PM_2.5 and O₃ Pollution Regulation Can Be Offset by Synergistic Control of VOCs Source