气候变化领域集成服务门户(CCPortal): Escalating global exposure to compound heat-humidity extremes with warming

CCPortal

DOI	10.1088/1748-9326/ab7d04
	Escalating global exposure to compound heat-humidity extremes with warming
	Li D.; Yuan J.; Kopp R.E.
发表日期	2020
ISSN	17489318
卷号	15 期号:6
英文摘要	Heat stress harms human health, agriculture, the economy, and the environment more broadly. Exposure to heat stress is increasing with rising global temperatures. While most studies assessing future heat stress have focused on surface air temperature, compound extremes of heat and humidity are key drivers of heat stress. Here, we use atmospheric reanalysis data and a large initial-condition ensemble of global climate model simulations to evaluate future changes in daily compound heat-humidity extremes as a function of increasing global-mean surface air temperature (GSAT). The changing frequency of heat-humidity extremes, measured using wet bulb globe temperature (WBGT), is strongly related to GSAT and, conditional upon GSAT, nearly independent of forcing pathway. The historical ∼1°C of GSAT increase above preindustrial levels has already increased the population annually exposed to at least one day with WBGT exceeding 33°C (the reference safety value for humans at rest per the ISO-7243 standard) from 97 million to 275 million. Maintaining the current population distribution, this exposure is projected to increase to 508 million with 1.5°C of warming, 789 million with 2.0°C of warming, and 1.22 billion with 3.0°C of warming (similar to late-century warming projected based on current mitigation policies). © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	heat stress; heat-humidity extremes; population exposure; wet bulb globe temperature
语种	英语
scopus关键词	Agricultural robots; Atmospheric temperature; Climate models; Thermal stress; Atmospheric reanalysis data; Global climate model simulations; Global temperatures; Initial condition ensembles; Mitigation policies; Pre-industrial levels; Surface air temperatures; Wet-bulb globe temperatures; Atmospheric humidity; air temperature; climate forcing; climate modeling; extreme event; high temperature; humidity; population distribution; public health; surface temperature; temperature effect; warming
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/154020
作者单位	Department of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, United States; Department of Atmospheric and Oceanic Sciences, Fudan University, Shanghai, China; Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ, United States; Rutgers Institute of Earth and Atmospheric Sciences, Rutgers University Ocean, New Brunswick, NJ, United States; Department of Geosciences, University of Massachusetts-Amherst, Amherst, MA, United States
推荐引用方式 GB/T 7714	Li D.,Yuan J.,Kopp R.E.. Escalating global exposure to compound heat-humidity extremes with warming[J],2020,15(6).
APA	Li D.,Yuan J.,&Kopp R.E..(2020).Escalating global exposure to compound heat-humidity extremes with warming.Environmental Research Letters,15(6).
MLA	Li D.,et al."Escalating global exposure to compound heat-humidity extremes with warming".Environmental Research Letters 15.6(2020).