气候变化领域集成服务门户(CCPortal): Quantifying the potential for climate change mitigation of consumption options

CCPortal

DOI	10.1088/1748-9326/ab8589
	Quantifying the potential for climate change mitigation of consumption options
	Ivanova D.; Barrett J.; Wiedenhofer D.; Macura B.; Callaghan M.; Creutzig F.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	Background. Around two-thirds of global GHG emissions are directly and indirectly linked to household consumption, with a global average of about 6 tCO2eq/cap. The average per capita carbon footprint of North America and Europe amount to 13.4 and 7.5 tCO2eq/cap, respectively, while that of Africa and the Middle East - to 1.7 tCO2eq/cap on average. Changes in consumption patterns to low-carbon alternatives therefore present a great and urgently required potential for emission reductions. In this paper, we synthesize emission mitigation potentials across the consumption domains of food, housing, transport and other consumption. Methods. We systematically screened 6990 records in the Web of Science Core Collections and Scopus. Searches were restricted to (1) reviews of lifecycle assessment studies and (2) multiregional input-output studies of household consumption, published after 2011 in English. We selected against pre-determined eligibility criteria and quantitatively synthesized findings from 53 studies in a meta-review. We identified 771 original options, which we summarized and presented in 61 consumption options with a positive mitigation potential. We used a fixed-effects model to explore the role of contextual factors (geographical, technical and socio-demographic factors) for the outcome variable (mitigation potential per capita) within consumption options. Results and discussion. We establish consumption options with a high mitigation potential measured in tons of CO2eq/capita/yr. For transport, the options with the highest mitigation potential include living car-free, shifting to a battery electric vehicle, and reducing flying by a long return flight with a median reduction potential of more than 1.7 tCO2eq/cap. In the context of food, the highest carbon savings come from dietary changes, particularly an adoption of vegan diet with an average and median mitigation potential of 0.9 and 0.8 tCO2eq/cap, respectively. Shifting to renewable electricity and refurbishment and renovation are the options with the highest mitigation potential in the housing domain, with medians at 1.6 and 0.9 tCO2eq/cap, respectively. We find that the top ten consumption options together yield an average mitigation potential of 9.2 tCO2eq/cap, indicating substantial contributions towards achieving the 1.5 C-2 C target, particularly in high-income context. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	carbon footprint; climate change; food; housing; mitigation potential; sustainable consumption; transport
语种	英语
scopus关键词	Battery electric vehicles; Carbon footprint; Electric automobiles; Emission control; Free flight; Greenhouse gases; Housing; Life cycle; Climate change mitigation; Consumption patterns; Eligibility criterion; Household Consumption; Life-cycle assessments; Reduction potential; Renewable electricity; Socio-demographic factors; Climate change; carbon dioxide; carbon emission; climate change; electric vehicle; emission control; fuel consumption; greenhouse gas; mitigation; quantitative analysis; Scopus
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153843
作者单位	School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Institute of Social Ecology, University of Natural Resources and Life Sciences, Vienna, Austria; Stockholm Environment Institute, Linnégatan 87D, Box 24218, STOCKHOLM, 10451, Sweden; Mercator Research Institute on Global Commons and Climate Change, Berlin, Germany; Technical University Berlin, Str. des 17. Junis 135, Berlin, 10623, Germany
推荐引用方式 GB/T 7714	Ivanova D.,Barrett J.,Wiedenhofer D.,et al. Quantifying the potential for climate change mitigation of consumption options[J],2020,15(9).
APA	Ivanova D.,Barrett J.,Wiedenhofer D.,Macura B.,Callaghan M.,&Creutzig F..(2020).Quantifying the potential for climate change mitigation of consumption options.Environmental Research Letters,15(9).
MLA	Ivanova D.,et al."Quantifying the potential for climate change mitigation of consumption options".Environmental Research Letters 15.9(2020).