气候变化领域集成服务门户(CCPortal): Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017: Implications for the Paris Agreement

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DOI	10.1029/2018GB006009
	Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017: Implications for the Paris Agreement
	Nisbet E.G.; Manning M.R.; Dlugokencky E.J.; Fisher R.E.; Lowry D.; Michel S.E.; Myhre C.L.; Platt S.M.; Allen G.; Bousquet P.; Brownlow R.; Cain M.; France J.L.; Hermansen O.; Hossaini R.; Jones A.E.; Levin I.; Manning A.C.; Myhre G.; Pyle J.A.; Vaughn B.H.; Warwick N.J.; White J.W.C.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
起始页码	318
结束页码	342
卷号	33 期号:3
英文摘要	Atmospheric methane grew very rapidly in 2014 (12.7 ± 0.5 ppb/year), 2015 (10.1 ± 0.7 ppb/year), 2016 (7.0 ± 0.7 ppb/year), and 2017 (7.7 ± 0.7 ppb/year), at rates not observed since the 1980s. The increase in the methane burden began in 2007, with the mean global mole fraction in remote surface background air rising from about 1,775 ppb in 2006 to 1,850 ppb in 2017. Simultaneously the 13C/12C isotopic ratio (expressed as δ13CCH4) has shifted, has shifted, now trending negative for more than a decade. The causes of methane's recent mole fraction increase are therefore either a change in the relative proportions (and totals) of emissions from biogenic and thermogenic and pyrogenic sources, especially in the tropics and subtropics, or a decline in the atmospheric sink of methane, or both. Unfortunately, with limited measurement data sets, it is not currently possible to be more definitive. The climate warming impact of the observed methane increase over the past decade, if continued at >5 ppb/year in the coming decades, is sufficient to challenge the Paris Agreement, which requires sharp cuts in the atmospheric methane burden. However, anthropogenic methane emissions are relatively very large and thus offer attractive targets for rapid reduction, which are essential if the Paris Agreement aims are to be attained. ©2019. The Authors.
英文关键词	atmospheric methane; fossil fuel methane emissions; methane isotopes; OH destruction of methane; Paris Agreement; wetland methane emissions
语种	英语
scopus关键词	atmospheric chemistry; atmospheric pollution; atmospheric sink; fossil fuel; global warming; hydroxide; international agreement; isotopic ratio; methane; methanogenesis; soil emission; wetland
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129739
作者单位	Department of Earth Sciences, Royal Holloway, University of London, Egham, Surrey, United Kingdom; Climate Change Research Institute, School of Geography Environment and Earth Sciences, Victoria University of Wellington, Wellington, New Zealand; Earth System Research Laboratory, Global Monitoring Division, US National Oceanic and Atmospheric Administration, Boulder, CO, United States; Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, United States; NILU-Norwegian Institute for Air Research, Kjeller, Norway; Centre for Atmospheric Science, University of Manchester, Manchester, United Kingdom; Laboratoire des Sciences du Climat et de l'Environnement, Gif-sur-Yvette Cedex, France; Energy and Sustainability Research Institute, University of Groningen, Groningen, Netherlands; Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, United Kingdom; Oxford Martin School, University of Oxford, Oxford, United Kingdom; British Antarctic Surve...
推荐引用方式 GB/T 7714	Nisbet E.G.,Manning M.R.,Dlugokencky E.J.,等. Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017: Implications for the Paris Agreement[J],2019,33(3).
APA	Nisbet E.G..,Manning M.R..,Dlugokencky E.J..,Fisher R.E..,Lowry D..,...&White J.W.C..(2019).Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017: Implications for the Paris Agreement.Global Biogeochemical Cycles,33(3).
MLA	Nisbet E.G.,et al."Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017: Implications for the Paris Agreement".Global Biogeochemical Cycles 33.3(2019).