气候变化领域集成服务门户(CCPortal): Old carbon reservoirs were not important in the deglacial methane budget

CCPortal

DOI	10.1126/science.aax0504
	Old carbon reservoirs were not important in the deglacial methane budget
	Dyonisius M.N.; Petrenko V.V.; Smith A.M.; Hua Q.; Yang B.; Schmitt J.; Beck J.; Seth B.; Bock M.; Hmiel B.; Vimont I.; Menking J.A.; Shackleton S.A.; Baggenstos D.; Bauska T.K.; Rhodes R.H.; Sperlich P.; Beaudette R.; Harth C.; Kalk M.; Brook E.J.; Fischer H.; Severinghaus J.P.; Weiss R.F.
发表日期	2020
ISSN	0036-8075
起始页码	907
结束页码	910
卷号	367 期号:6480
英文摘要	Permafrost and methane hydrates are large, climate-sensitive old carbon reservoirs that have the potential to emit large quantities of methane, a potent greenhouse gas, as the Earth continues to warm. We present ice core isotopic measurements of methane (D14C, d13C, and dD) from the last deglaciation, which is a partial analog for modern warming. Our results show that methane emissions from old carbon reservoirs in response to deglacial warming were small (<19 teragrams of methane per year, 95% confidence interval) and argue against similar methane emissions in response to future warming. Our results also indicate that methane emissions from biomass burning in the pre-Industrial Holocene were 22 to 56 teragrams of methane per year (95% confidence interval), which is comparable to today. © 2020 American Association for the Advancement of Science. All rights reserved.
英文关键词	carbon; carbon 14; carbon dioxide; carbon monoxide; deuterium; hydrocarbon; hydrogen; methane; nitrogen oxide; biomass burning; carbon; deglaciation; global warming; Holocene; methane; permafrost; reservoir; aerosol; air pollution; Article; atmosphere; biomass; carbon cycle; carbon footprint; deglaciation; environmental temperature; Holocene; ice core record; ice sheet; lake; landslide; moisture; permafrost; priority journal; sediment; soil; thawing
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243593
作者单位	Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY 14627, United States; Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia; Climate and Environmental Physics, Physics Institute and Oeschger Centre for Climate Change Research, University of Bern, Bern, CH-3012, Switzerland; Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO 80303, United States; College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, United States; Scripps Institution of Oceanography (SIO), University of California, San Diego, CA 92037, United States; British Antarctic Survey High Cross, Cambridge, CB3 0ET, United Kingdom; Department of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, United Kingdom; National Institute of Water and Atmospheric Research (NIWA), Wellington, 6021, New Zealand; Cooperative Institute for Research in Earth Sciences, University of Colorado,...
推荐引用方式 GB/T 7714	Dyonisius M.N.,Petrenko V.V.,Smith A.M.,et al. Old carbon reservoirs were not important in the deglacial methane budget[J],2020,367(6480).
APA	Dyonisius M.N..,Petrenko V.V..,Smith A.M..,Hua Q..,Yang B..,...&Weiss R.F..(2020).Old carbon reservoirs were not important in the deglacial methane budget.Science,367(6480).
MLA	Dyonisius M.N.,et al."Old carbon reservoirs were not important in the deglacial methane budget".Science 367.6480(2020).