气候变化领域集成服务门户(CCPortal): Brief communication: Understanding solar geoengineering's potential to limit sea level rise requires attention from cryosphere experts

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DOI	10.5194/tc-12-2501-2018
	Brief communication: Understanding solar geoengineering's potential to limit sea level rise requires attention from cryosphere experts
	Irvine P.J.; Keith D.W.; Moore J.
发表日期	2018
ISSN	19940416
卷号	12 期号:7
英文摘要	Stratospheric aerosol geoengineering, a form of solar geoengineering, is a proposal to add a reflective layer of aerosol to the stratosphere to reduce net radiative forcing and so to reduce the risks of climate change. The efficacy of solar geoengineering at reducing changes to the cryosphere is uncertain; solar geoengineering could reduce temperatures and so slow melt, but its ability to reverse ice sheet collapse once initiated may be limited. Here we review the literature on solar geoengineering and the cryosphere and identify the key uncertainties that research could address. Solar geoengineering may be more effective at reducing surface melt than a reduction in greenhouse forcing that produces the same global-average temperature response. Studies of natural analogues and model simulations support this conclusion. However, changes below the surfaces of the ocean and ice sheets may strongly limit the potential of solar geoengineering to reduce the retreat of marine glaciers. High-quality process model studies may illuminate these issues. Solar geoengineering is a contentious emerging issue in climate policy and it is critical that the potential, limits, and risks of these proposals are made clear for policy makers. © 2018 Author(s).
学科领域	aerosol; climate change; cryosphere; engineering; environmental policy; ice sheet; literature review; radiative forcing; sea level change; solar radiation; stratosphere; temperature; uncertainty analysis
语种	英语
scopus关键词	aerosol; climate change; cryosphere; engineering; environmental policy; ice sheet; literature review; radiative forcing; sea level change; solar radiation; stratosphere; temperature; uncertainty analysis
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119092
作者单位	Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA 02138, United States; Joint Center for Global Change Studies, College of Global Change and Earth System Science, Beijing Normal University, Beijing, 100875, China; Arctic Centre, University of Lapland, Rovaniemi, 96101, Finland
推荐引用方式 GB/T 7714	Irvine P.J.,Keith D.W.,Moore J.. Brief communication: Understanding solar geoengineering's potential to limit sea level rise requires attention from cryosphere experts[J],2018,12(7).
APA	Irvine P.J.,Keith D.W.,&Moore J..(2018).Brief communication: Understanding solar geoengineering's potential to limit sea level rise requires attention from cryosphere experts.Cryosphere,12(7).
MLA	Irvine P.J.,et al."Brief communication: Understanding solar geoengineering's potential to limit sea level rise requires attention from cryosphere experts".Cryosphere 12.7(2018).