气候变化领域集成服务门户(CCPortal): Disproportionately higher exposure to urban heat in lower-income neighborhoods: A multi-city perspective

CCPortal

DOI	10.1088/1748-9326/ab3b99
	Disproportionately higher exposure to urban heat in lower-income neighborhoods: A multi-city perspective
	Chakraborty T.; Hsu A.; Manya D.; Sheriff G.
发表日期	2019
ISSN	17489318
卷号	14 期号:10
英文摘要	A growing literature documents the effects of heat stress on premature mortality and other adverse health outcomes. Urban heat islands (UHI) can exacerbate these adverse impacts in cities by amplifying heat exposure during the day and inhibiting the body's ability to recover at night. Since the UHI intensity varies not only across, but also within cities, intra-city variation may lead to differential impact of urban heat stress on different demographic groups. To examine these differential impacts, we combine satellite observations with census data to evaluate the relationship between distributions of both UHI and income at the neighborhood scale for 25 cities around the world. We find that in most (72%) cases, poorer neighborhoods experience elevated heat exposure, an incidental consequence of the intra-city distribution of income in cities. This finding suggests that policymakers should consider designing city-specific UHI reduction strategies to mitigate its impacts on the most socioeconomically vulnerable populations who may be less equipped to adapt to environmental stressors. Since the strongest contributor of intra-urban UHI variability among the physical characteristics considered in this study is a neighborhood's vegetation density, increasing green space in lower income neighborhoods is one strategy urban policymakers can adopt to ameliorate some of UHI's inequitable burden on economically disadvantaged residents. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	climate change; distributional equality; inequality; multi-city comparison; remote sensing; urban heat island effect; urban sustainability
语种	英语
scopus关键词	Population statistics; City distribution; Demographic groups; Environmental stressors; Physical characteristics; Premature mortality; Reduction strategy; Satellite observations; Vegetation density; Thermal stress; census; health impact; mortality; nature-society relations; neighborhood; pollution exposure; urban area
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/154369
作者单位	Yale School of Forestry and Environmental Studies, New Haven, CT, United States; Yale-NUS College, Singapore, Singapore; School of Politics and Global Studies, Arizona State University, Tempe, AZ, United States
推荐引用方式 GB/T 7714	Chakraborty T.,Hsu A.,Manya D.,et al. Disproportionately higher exposure to urban heat in lower-income neighborhoods: A multi-city perspective[J],2019,14(10).
APA	Chakraborty T.,Hsu A.,Manya D.,&Sheriff G..(2019).Disproportionately higher exposure to urban heat in lower-income neighborhoods: A multi-city perspective.Environmental Research Letters,14(10).
MLA	Chakraborty T.,et al."Disproportionately higher exposure to urban heat in lower-income neighborhoods: A multi-city perspective".Environmental Research Letters 14.10(2019).