气候变化领域集成服务门户(CCPortal): Persistent inequality in economically optimal climate policies

CCPortal

DOI	10.1038/s41467-021-23613-y
	Persistent inequality in economically optimal climate policies
	Gazzotti P.; Emmerling J.; Marangoni G.; Castelletti A.; Wijst K.-I.; Hof A.; Tavoni M.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Benefit-cost analyses of climate policies by integrated assessment models have generated conflicting assessments. Two critical issues affecting social welfare are regional heterogeneity and inequality. These have only partly been accounted for in existing frameworks. Here, we present a benefit-cost model with more than 50 regions, calibrated upon emissions and mitigation cost data from detailed-process IAMs, and featuring country-level economic damages. We compare countries’ self-interested and cooperative behaviour under a range of assumptions about socioeconomic development, climate impacts, and preferences over time and inequality. Results indicate that without international cooperation, global temperature rises, though less than in commonly-used reference scenarios. Cooperation stabilizes temperature within the Paris goals (1.80∘C [1.53∘C–2.31∘C] in 2100). Nevertheless, economic inequality persists: the ratio between top and bottom income deciles is 117% higher than without climate change impacts, even for economically optimal pathways. © 2021, The Author(s).
语种	英语
scopus关键词	climate effect; cost-benefit analysis; emission control; environmental assessment; environmental economics; environmental policy; heterogeneity; integrated approach; international agreement; mitigation; article; climate change; France; human; international cooperation
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250681
作者单位	Department of Management, Economics and Industrial Engineering, Politecnico di Milano, Milan, Italy; RFF-CMCC European Institute on Economics and the Environment (EIEE), Centro Euro-Mediterraneo sui Cambiamenti Climatici, Milan, Italy; Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Milan, Italy; PBL Netherlands Environmental Assessment Agency, The Hague, Netherlands
推荐引用方式 GB/T 7714	Gazzotti P.,Emmerling J.,Marangoni G.,et al. Persistent inequality in economically optimal climate policies[J],2021,12(1).
APA	Gazzotti P..,Emmerling J..,Marangoni G..,Castelletti A..,Wijst K.-I..,...&Tavoni M..(2021).Persistent inequality in economically optimal climate policies.Nature Communications,12(1).
MLA	Gazzotti P.,et al."Persistent inequality in economically optimal climate policies".Nature Communications 12.1(2021).