气候变化领域集成服务门户(CCPortal): Catastrophic climate change; population ethics and intergenerational equity

CCPortal

DOI	10.1007/s10584-020-02899-9
	Catastrophic climate change; population ethics and intergenerational equity
	Méjean A.; Pottier A.; Fleurbaey M.; Zuber S.
发表日期	2020
ISSN	0165-0009
英文摘要	Climate change threatens irreversible and dangerous impacts, possibly leading to extinction. The most relevant trade-off then may not be between present and future consumption but between present consumption and the mere existence of future generations. To investigate this trade-off, we build an integrated assessment model that explicitly accounts for the risk of extinction of future generations. Using the class of number-dampened utilitarian social welfare functions, we compare different climate policies that change the probability of catastrophic outcomes yielding an early extinction. We analyse the role of inequality aversion and population ethics. Low inequality aversion and a preference for large populations favour the most ambitious climate policy, although there are cases where the effect of inequality aversion on the preferred policy is reversed. This is due to the fact that a higher inequality aversion both decreases the welfare loss of reducing consumption of the current generation and also decreases the welfare gain of reducing the future risk of extinction. © 2020, Springer Nature B.V.
英文关键词	Catastrophic risk; Climate change; Climate-economy model; Equity; Population
语种	英语
scopus关键词	Economic and social effects; Philosophical aspects; Risk assessment; Climate policy; Current generation; Future consumption; Future generations; Integrated assessment models; Intergenerational equity; Large population; Social welfare functions; Climate change
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/147262
作者单位	CIRED (CNRS), 45 bis avenue de la Belle Gabrielle, Nogent-sur-Marne Cédex, 94736, France; CIRED (EHESS), Nogent-sur-Marne, France; Paris School of Economics (CNRS), Paris, France
推荐引用方式 GB/T 7714	Méjean A.,Pottier A.,Fleurbaey M.,et al. Catastrophic climate change; population ethics and intergenerational equity[J],2020.
APA	Méjean A.,Pottier A.,Fleurbaey M.,&Zuber S..(2020).Catastrophic climate change; population ethics and intergenerational equity.Climatic Change.
MLA	Méjean A.,et al."Catastrophic climate change; population ethics and intergenerational equity".Climatic Change (2020).