气候变化领域集成服务门户(CCPortal): Influence of climate change impacts and mitigation costs on inequality between countries

CCPortal

DOI	10.1007/s10584-019-02637-w
	Influence of climate change impacts and mitigation costs on inequality between countries
	Taconet N.; Méjean A.; Guivarch C.
发表日期	2020
ISSN	0165-0009
起始页码	15
结束页码	34
卷号	160 期号:1
英文摘要	Climate change affects inequalities between countries in two ways. On the one hand, rising temperatures from greenhouse gas accumulation cause impacts that fall more heavily on low-income countries. On the other hand, the costs of mitigating climate change through reduced emissions could slow down the economic catch-up of poor countries. Whether, and how much the recent decline in between-country inequalities will continue in the twenty-first century is uncertain, and the existing projections rarely account for climate factors. In this study, we build scenarios that account for the joint effects of mitigation costs and climate damages on inequality. We compute the evolution of country-by-country GDP, considering uncertainty in socioeconomic assumptions, emission pathways, mitigation costs, temperature response, and climate damages. We analyze the resulting 3408 scenarios using exploratory analysis tools. We show that the uncertainties associated with socioeconomic assumptions and damage estimates are the main drivers of future inequalities. We investigate under which conditions the cascading effects of these uncertainties can counterbalance the projected convergence of countries’ incomes. We also compare inequality levels across emission pathways and analyze when the effect of climate damages on inequality outweigh that of mitigation costs. We stress the divide between IAM- and econometrics-based damage functions in terms of their effect on inequality. If climate damages are as regressive as the latter suggest, climate mitigation policies are key to limit the rise of future inequalities between countries. © 2020, Springer Nature B.V.
英文关键词	Climate change; Climate change impact; Climate mitigation; Gini; Inequality; Scenario analysis; Socioeconomic scenario
语种	英语
scopus关键词	Developing countries; Economic analysis; Greenhouse gases; Statistics; Uncertainty analysis; Climate change impact; Climate mitigations; Gini; Inequality; Scenario analysis; Socioeconomic scenario; Climate change; climate change; climate effect; cost analysis; economic conditions; emission control; environmental degradation; environmental economics; environmental factor; equity; Gross Domestic Product
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/147194
作者单位	Ecole des Ponts, CIRED - Centre International de Recherche sur l’Environnement et le Développement, 45 bis Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, 94736, France; CNRS, CIRED - Centre International de Recherche sur l’Environnement et le Développement, 45 bis Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, 94736, France
推荐引用方式 GB/T 7714	Taconet N.,Méjean A.,Guivarch C.. Influence of climate change impacts and mitigation costs on inequality between countries[J],2020,160(1).
APA	Taconet N.,Méjean A.,&Guivarch C..(2020).Influence of climate change impacts and mitigation costs on inequality between countries.Climatic Change,160(1).
MLA	Taconet N.,et al."Influence of climate change impacts and mitigation costs on inequality between countries".Climatic Change 160.1(2020).