气候变化领域集成服务门户(CCPortal): Beyond national climate action: the impact of region, city, and business commitments on global greenhouse gas emissions

CCPortal

DOI	10.1080/14693062.2020.1740150
	Beyond national climate action: the impact of region, city, and business commitments on global greenhouse gas emissions
	Kuramochi T.; Roelfsema M.; Hsu A.; Lui S.; Weinfurter A.; Chan S.; Hale T.; Clapper A.; Chang A.; Höhne N.
发表日期	2020
ISSN	1469-3062
卷号	20 期号:3
英文摘要	This article quantifies the net aggregate impact in 2030 of commitments by individual non-state and subnational actors (e.g. regions, cities and businesses, collectively referred to as ‘NSAs’) to reduce greenhouse gas (GHG) emissions. The analysis was conducted for NSAs operating within ten major emitting economies that together accounted for roughly two-thirds of global GHG emissions in 2016. Our assessment includes 79 regions (e.g. subnational states and provinces), approximately 6,000 cities, and nearly 1,600 companies with a net emissions coverage of 8.1 GtCO2e/year, or a quarter of the ten economies’ total GHG emissions in 2016. The analysis reflects a proposed methodology to aggregate commitments from different subnational (i.e. regional and city government) and non-state (i.e. business) actors, accounting for overlaps. If individual commitments by NSAs in the ten high-emitting economies studied are fully implemented and do not change the pace of action elsewhere, projected GHG emissions in 2030 for the ten economies would be 1.2–2.0 GtCO2e/year or 3.8%–5.5% lower compared to scenario projections for current national policies (31.6–36.8 GtCO2e/year). On a country level, we find that the full implementation of these individual commitments alone could result in the European Union and Japan overachieving their nationally determined contributions (NDCs), while India could further overachieve its unconditional NDC target. In the United States, where the national government has rolled back climate policies, NSAs could become a potential driving force for climate action. Key policy insights Full implementation of reported and quantifiable individual commitments by regions, cities and businesses (NSAs) in ten major economies could reduce emissions by 3.8%–5.5% in 2030 below current national policies scenario projections. National governments’ mitigation targets could be more ambitious if they would take NSA commitments into account. With full implementation of such action, the European Union and Japan would overachieve their NDC targets. For the United States such action could help meeting its original 2025 NDC target in spite of rollbacks in national climate policies. The full universe of NSA climate action expands far beyond the subset of commitments analysed in this study; NSAs could become a strong driving force for enhanced action towards the Paris climate goals. © 2020, © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
英文关键词	bottom-up approaches; climate change mitigation; local government; mitigation scenarios; Non-state actors
来源期刊	CLIMATE POLICY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183766
作者单位	NewClimate Institute, Cologne, Germany; Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, Netherlands; PBL Netherlands Environmental Assessment Agency, the Hague, Netherlands; Yale-NUS College, Singapore; German Develorpment Institute/Deutsches Institut für Entwicklungspolitik (DIE), Bonn, Germany; Blavatnik School of Government, University of Oxford, Oxford, United Kingdom; CDP, New York, NY, United States; Environmental Systems Analysis Group, Wageningen University and Research Centre, Wageningen, Netherlands
推荐引用方式 GB/T 7714	Kuramochi T.,Roelfsema M.,Hsu A.,et al. Beyond national climate action: the impact of region, city, and business commitments on global greenhouse gas emissions[J],2020,20(3).
APA	Kuramochi T..,Roelfsema M..,Hsu A..,Lui S..,Weinfurter A..,...&Höhne N..(2020).Beyond national climate action: the impact of region, city, and business commitments on global greenhouse gas emissions.CLIMATE POLICY,20(3).
MLA	Kuramochi T.,et al."Beyond national climate action: the impact of region, city, and business commitments on global greenhouse gas emissions".CLIMATE POLICY 20.3(2020).