气候变化领域集成服务门户(CCPortal): Halving warming with idealized solar geoengineering moderates key climate hazards

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DOI	10.1038/s41558-019-0398-8
	Halving warming with idealized solar geoengineering moderates key climate hazards
	Irvine P.; Emanuel K.; He J.; Horowitz L.W.; Vecchi G.; Keith D.
发表日期	2019
ISSN	1758678X
EISSN	1758-6798
卷号	9 期号:4 页码:295-+
英文摘要	Solar geoengineering (SG) has the potential to restore average surface temperatures by increasing planetary albedo 1–4 , but this could reduce precipitation 5–7 . Thus, although SG might reduce globally aggregated risks, it may increase climate risks for some regions 8–10 . Here, using the high-resolution forecast-oriented low ocean resolution (HiFLOR) model—which resolves tropical cyclones and has an improved representation of present-day precipitation extremes 11,12— alongside 12 models from the Geoengineering Model Intercomparison Project (GeoMIP), we analyse the fraction of locations that see their local climate change exacerbated or moderated by SG. Rather than restoring temperatures, we assume that SG is applied to halve the warming produced by doubling CO 2 (half-SG). In HiFLOR, half-SG offsets most of the CO 2 -induced increase of simulated tropical cyclone intensity. Moreover, neither temperature, water availability, extreme temperature nor extreme precipitation are exacerbated under half-SG when averaged over any Intergovernmental Panel on Climate Change (IPCC) Special Report on Extremes (SREX) region. Indeed, for both extreme precipitation and water availability, less than 0.4% of the ice-free land surface sees exacerbation. Thus, while concerns about the inequality of solar geoengineering impacts are appropriate, the quantitative extent of inequality may be overstated 13 . © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
学科领域	Environmental Sciences;Environmental Studies;Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000462353800014
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/82752
作者单位	John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States; Lorenz Center, Massachusetts Institute of Technology, Cambridge, MA, United States; The Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ, United States; National Oceanic and Atmospheric Administration, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; Department of Geosciences and the Princeton Environmental Institute, Princeton University, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Irvine P.,Emanuel K.,He J.,et al. Halving warming with idealized solar geoengineering moderates key climate hazards[J],2019,9(4):295-+.
APA	Irvine P.,Emanuel K.,He J.,Horowitz L.W.,Vecchi G.,&Keith D..(2019).Halving warming with idealized solar geoengineering moderates key climate hazards.Nature Climate Change,9(4),295-+.
MLA	Irvine P.,et al."Halving warming with idealized solar geoengineering moderates key climate hazards".Nature Climate Change 9.4(2019):295-+.