气候变化领域集成服务门户(CCPortal): Climate change mitigation in cities: A systematic scoping of case studies

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DOI	10.1088/1748-9326/ab99ff
	Climate change mitigation in cities: A systematic scoping of case studies
	Sethi M.; Lamb W.; Minx J.; Creutzig F.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	A growing number of researchers and stakeholders have started to address climate change from the bottom up: By devising scientific models, climate plans, low-carbon strategies and development policies with climate co-benefits. Little is known about the comparative characteristics of these interventions, including their relative efficacy, potentials and emissions reductions. A more systematic understanding is required to delineate the urban mitigation space and inform decision-making. Here, we utilize bibliometric methods and machine learning to meta-analyze 5635 urban case studies of climate change mitigation. We identify 867 studies that explicitly consider technological or policy instruments, and categorize these studies according to policy type, sector, abatement potential, and socio-technological composition to obtain a first heuristic of what is their pattern. Overall, we find 41 different urban solutions with an average GHG abatement potential ranging from 5.2% to 105%, most of them clustering in the building and transport sectors. More than three-fourth of the solutions are on demand side. Less than 10% of all studies were ex-post policy evaluations. Our results demonstrate that technology-oriented interventions in urban waste, transport and energy sectors have the highest marginal abatement potential, while system-wide interventions, e.g. urban form related measures have lower marginal abatement potential but wider scope. We also demonstrate that integrating measures across urban sectors realizes synergies in GHG emission reductions. Our results reveal a rich evidence of techno-policy choices that together enlarge the urban solutions space and augment actions currently considered in global assessments of climate mitigation. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Case studies; Climate mitigation; Demand-side solutions; Machine learning; Policy measures; Systematic review
语种	英语
scopus关键词	Climate models; Decision making; Emission control; Greenhouse gases; Urban transportation; Abatement potentials; Climate change mitigation; Climate mitigations; Development policies; Emissions reduction; Low-carbon strategies; Policy instruments; Transport sectors; Climate change; abatement cost; action plan; building; climate change; climate modeling; emission control; greenhouse gas; machine learning; meta-analysis; stakeholder
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/153741
作者单位	Technical University of Berlin, Straße des 17. Juni 135, Berlin, 10623, Germany; Mercator Research Institute on Global Commons and Climate Change, Torgauer Straße 12-15, EUREF Campus #19, Berlin, 10829, Germany; School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; Priestley International Centre for Climate, University of Leeds, Leeds, LS2 9JT, United Kingdom
推荐引用方式 GB/T 7714	Sethi M.,Lamb W.,Minx J.,et al. Climate change mitigation in cities: A systematic scoping of case studies[J],2020,15(9).
APA	Sethi M.,Lamb W.,Minx J.,&Creutzig F..(2020).Climate change mitigation in cities: A systematic scoping of case studies.Environmental Research Letters,15(9).
MLA	Sethi M.,et al."Climate change mitigation in cities: A systematic scoping of case studies".Environmental Research Letters 15.9(2020).