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DOI	10.1016/j.atmosenv.2021.118762
	On the contribution of global aviation to the CO2 radiative forcing of climate
	Boucher O.; Borella A.; Gasser T.; Hauglustaine D.
发表日期	2021
ISSN	1352-2310
卷号	267
英文摘要	The aviation sector contributes to anthropogenic climate change through both CO2 and non-CO2 radiative effects. The CO2 effect is considered to be much more certain than the non-CO2 effects, yet there are relatively few studies that quantify it. Building on the scientific literature on burden sharing in the wake of the “Brazilian proposal”, we discuss how to best attribute a fraction of the CO2 radiative forcing to the aviation sector. For this we use the OSCAR compact Earth System model to estimate a contribution of aviation to the CO2 concentration of 2.18 ppm in 2018. We further estimate the aviation contribution to the 2018 CO2 radiative forcing to be 34.6, 32.6, 32.2 and 28.8 mW m−2 for the proportional, differential, time-sliced and marginal methods, respectively. The time-sliced method has our preference because it is invariant upon disaggregation or recombination and can differentiate the relative impacts of early and late emissions. It leads to a radiative forcing estimate that is 12% larger than the residual method that is commonly used despite not being additive. This work has implications on the total-to-CO2 RF ratio and the assessment of potential mitigation measures involving a trade-off between the CO2 and non-CO2 radiative effects of aviation. © 2021 The Author(s)
关键词	Attribution methods Aviation Brazilian proposal CO2 OSCAR Radiative forcing
语种	英语
scopus关键词	Atmospheric radiation; Climate change; Economic and social effects; Anthropogenic climate changes; Attribution method; Aviation sector; Brazilian proposal; CO 2 concentration; Earth system modeling; OSCAR; Radiative effects; Radiative forcings; Scientific literature; Carbon dioxide; carbon dioxide; fossil fuel; anthropogenic effect; carbon dioxide; climate change; climate forcing; global change; radiative forcing; recombination; Article; aviation; Brazil; carbon footprint; climate change; controlled study; exhaust gas; gas evolution; global climate; mathematical model; radiative forcing
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248181
作者单位	Institut Pierre-Simon Laplace, Sorbonne Université / CNRS, Paris, France; Département de Physique, École Normale Supérieure - PSL, Paris, France; International Institute for Applied Systems Analysis, Laxenburg, Austria; Laboratoire des Sciences du Climat et de l'Environnement, Institut Pierre–Simon Laplace, CEA / CNRS / UVSQ, France
推荐引用方式 GB/T 7714	Boucher O.,Borella A.,Gasser T.,et al. On the contribution of global aviation to the CO2 radiative forcing of climate[J],2021,267.
APA	Boucher O.,Borella A.,Gasser T.,&Hauglustaine D..(2021).On the contribution of global aviation to the CO2 radiative forcing of climate.ATMOSPHERIC ENVIRONMENT,267.
MLA	Boucher O.,et al."On the contribution of global aviation to the CO2 radiative forcing of climate".ATMOSPHERIC ENVIRONMENT 267(2021).