气候变化领域集成服务门户(CCPortal): Climate effects of aerosols reduce economic inequality

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DOI	10.1038/s41558-020-0699-y
	Climate effects of aerosols reduce economic inequality
	Zheng Y.; Davis S.J.; Persad G.G.; Caldeira K.
发表日期	2020
ISSN	1758678X
卷号	10 期号:3
英文摘要	The climate effects of anthropogenic aerosols have masked some of the warming induced by GHGs1 along with some impacts of that warming2. These temperature effects may be beneficial but are almost certainly overwhelmed by aerosols’ negative health impacts3. Recent analyses of economic impacts have concluded that warming harms economies in warm climates, but provides economic benefits in cold climates4. Here we investigate whether aerosol-induced cooling would have a positive effect on less wealthy economies in hotter regions and a negative effect on wealthier economies in colder regions. Climate simulations over the historical period both with and without anthropogenic aerosol emissions, using a fully coupled ocean and atmosphere climate model, indicate that in year 2010 anthropogenic aerosol emissions were cooling the Earth by 0.72 ± 0.02 °C relative to a scenario without such emissions. Due to opposing economic impacts in different regions, the net economic impact of aerosol-induced cooling is likely to be small at the global scale. However, these results suggest that the cooling effects of anthropogenic aerosols benefit developing tropical economies while harming developed high-latitude economies, and thus the temperature effects of past aerosol emissions have probably diminished global economic inequality. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124211
作者单位	Department of Global Ecology, Carnegie Institution for Science, Stanford, CA, United States; Department of Earth System Science, University of California, Irvine, Irvine, CA, United States
推荐引用方式 GB/T 7714	Zheng Y.,Davis S.J.,Persad G.G.,et al. Climate effects of aerosols reduce economic inequality[J],2020,10(3).
APA	Zheng Y.,Davis S.J.,Persad G.G.,&Caldeira K..(2020).Climate effects of aerosols reduce economic inequality.Nature Climate Change,10(3).
MLA	Zheng Y.,et al."Climate effects of aerosols reduce economic inequality".Nature Climate Change 10.3(2020).