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DOI	10.1007/s10584-019-02427-4
	The choice of climate metric is of limited importance when ranking options for abatement of near-term climate forcers
	Åström S.; Johansson D.J.A.
发表日期	2019
ISSN	0165-0009
起始页码	401
结束页码	416
卷号	154 期号:2020-03-04
英文摘要	The practice of using climate metrics to estimate carbon dioxide equivalent emissions has long been subject to scientific discussion. One strand of this literature has analysed whether the choice of metric affects the relative cost-effectiveness of options for climate change abatement, but there has been little discussion on the effect of metric choices on cost-effective abatement of near-term climate forcers (NTCFs). These NTCFs are air pollutants primarily regulated by policies outside the climate policy arena and their estimated carbon dioxide equivalent emissions are not typically considered in the evaluation of cost-effective abatement. However, the attention to NTCFs as climate forcers has increased during the last decade. The objective of this paper is to identify whether the relative cost-effectiveness of different NTCF abatement options is robust to climate metric choices. We assess nine plausible NTCF abatement options available in Sweden (with negligible effect on long-lived GHG emissions) and evaluate the robustness of the ranking of these, according to their estimated cost-effectiveness. Different metric designs are considered as well as climate impact uncertainty of NTCFs, with corresponding uncertainty in metric values. The results indicate that the choice of metric has little effect on the ranking of the options according to their cost-effectiveness, with options affecting NOx indicated as an exception. This suggests that the choice of metric utilised when calculating cost-effectiveness of NTCF abatement options is likely to have minor effect on which NTCF abatement options should be targeted for policy interventions (if NOx emissions are not significantly affected). © 2019, The Author(s).
语种	英语
scopus关键词	Carbon dioxide; Climate change; Cost estimating; Greenhouse gases; Nitrogen oxides; Abatement options; Air pollutants; Climate impacts; Climate policy; Cost effective; Metric values; NOx emissions; Policy intervention; Cost effectiveness; abatement cost; atmospheric pollution; carbon emission; climate change; climate effect; climate forcing; pollution policy; ranking; Sweden
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147461
作者单位	Department of Space, Earth, and Environment, Division of Physical Resource Theory, Chalmers University of Technology, Gothenburg, SE-412 93, Sweden; IVL Swedish Environmental Research Institute Ltd., P.O. Box 530 21, Gothenburg, SE-400 14, Sweden
推荐引用方式 GB/T 7714	Åström S.,Johansson D.J.A.. The choice of climate metric is of limited importance when ranking options for abatement of near-term climate forcers[J],2019,154(2020-03-04).
APA	Åström S.,&Johansson D.J.A..(2019).The choice of climate metric is of limited importance when ranking options for abatement of near-term climate forcers.Climatic Change,154(2020-03-04).
MLA	Åström S.,et al."The choice of climate metric is of limited importance when ranking options for abatement of near-term climate forcers".Climatic Change 154.2020-03-04(2019).