气候变化领域集成服务门户(CCPortal): Permafrost carbon feedbacks threaten global climate goals

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DOI	10.1073/pnas.2100163118
	Permafrost carbon feedbacks threaten global climate goals
	Natali S.M.; Holdren J.P.; Rogers B.M.; Treharne R.; Duffy P.B.; Pomerance R.; MacDonald E.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:21
英文摘要	Rapid Arctic warming has intensified northern wildfires and is thawing carbon-rich permafrost. Carbon emissions from permafrost thaw and Arctic wildfires, which are not fully accounted for in global emissions budgets, will greatly reduce the amount of greenhouse gases that humans can emit to remain below 1.5 °C or 2 °C. The Paris Agreement provides ongoing opportunities to increase ambition to reduce society’s greenhouse gas emissions, which will also reduce emissions from thawing permafrost. In December 2020, more than 70 countries announced more ambitious nationally determined contributions as part of their Paris Agreement commitments; however, the carbon budgets that informed these commitments were incomplete, as they do not fully account for Arctic feedbacks. There is an urgent need to incorporate the latest science on carbon emissions from permafrost thaw and northern wildfires into international consideration of how much more aggressively societal emissions must be reduced to address the global climate crisis. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Arctic; climate; feedbacks; Permafrost; policy
语种	英语
scopus关键词	Arctic; Article; carbon footprint; climate change; climate resilience; combustion; decision making; environmental monitoring; greenhouse effect; mathematical model; permafrost; policy; priority journal; risk evaluation and mitigation strategy; temperature
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238557
作者单位	Woodwell Climate Research Center, Falmouth, MA 02540, United States; Belfer Center for Science and International Affairs, John F. Kennedy School of Government, Harvard University, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Natali S.M.,Holdren J.P.,Rogers B.M.,et al. Permafrost carbon feedbacks threaten global climate goals[J],2021,118(21).
APA	Natali S.M..,Holdren J.P..,Rogers B.M..,Treharne R..,Duffy P.B..,...&MacDonald E..(2021).Permafrost carbon feedbacks threaten global climate goals.Proceedings of the National Academy of Sciences of the United States of America,118(21).
MLA	Natali S.M.,et al."Permafrost carbon feedbacks threaten global climate goals".Proceedings of the National Academy of Sciences of the United States of America 118.21(2021).