The inequitable exposure of socially vulnerable groups to water shortages across the United States

Socially vulnerable populations in the United States are bearing the highest costs of water scarcity, which is likely to worsen with climate change, population growth, and growing disparities between areas with high water demand and the location of available supplies. Prior research showing that soc...

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Main Authors: Leslie Sanchez, Travis Warziniack, Michael Knowles
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/acb06d
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author Leslie Sanchez
Travis Warziniack
Michael Knowles
author_facet Leslie Sanchez
Travis Warziniack
Michael Knowles
author_sort Leslie Sanchez
collection DOAJ
description Socially vulnerable populations in the United States are bearing the highest costs of water scarcity, which is likely to worsen with climate change, population growth, and growing disparities between areas with high water demand and the location of available supplies. Prior research showing that socially vulnerable groups are inequitably exposed to water shortages has focused on singular dimensions of social vulnerability, typically in relatively localized geographies, leaving us with an incomplete understanding of the national scope of the shortage risks. This study combines data on surface water shortages with the U.S. Center for Disease Control’s Social Vulnerability Index (SVI) to spatially identify clusters of high-shortage, high-vulnerability hotspots from 71 195 census tracts across the conterminous United States. We estimate that 5 percent of the population of the lower 48 states—nearly 15 million people—lives in high-SVI, high-shortage hotspot areas. We examine the relationship between exposure to water shortage and (a) SVI, (b) SVI themes, and (c) 15 indicators used to construct SVI across the U.S. and within hotspots. We find evidence that water shortages constitute an environmental injustice, as multiple dimensions of social vulnerability are disproportionately exposed to water shortages. However, the distinct dimensions of vulnerability that are correlated with a higher probability of exposure to water shortage vary across regions and within hotspots, indicating that adaptation strategies will have to be tailored to their specific contexts. This statement is to certify that all Authors have seen and approved the manuscript being submitted. We confirm that the article is the Authors’ original work and that we have no conflicts of interest.
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spelling doaj.art-e909fe07faf94730a0f8f49a6135814d2023-08-09T15:20:12ZengIOP PublishingEnvironmental Research Letters1748-93262023-01-0118404402210.1088/1748-9326/acb06dThe inequitable exposure of socially vulnerable groups to water shortages across the United StatesLeslie Sanchez0https://orcid.org/0000-0002-0947-9535Travis Warziniack1Michael Knowles2Oak Ridge Institute for Science and Education, US Department of Energy , Oak Ridge, TN, United States of America; Rocky Mountain Research Station, U.S. Forest Service , Fort Collins, CO, United States of AmericaRocky Mountain Research Station, U.S. Forest Service , Fort Collins, CO, United States of AmericaRocky Mountain Research Station, U.S. Forest Service , Fort Collins, CO, United States of AmericaSocially vulnerable populations in the United States are bearing the highest costs of water scarcity, which is likely to worsen with climate change, population growth, and growing disparities between areas with high water demand and the location of available supplies. Prior research showing that socially vulnerable groups are inequitably exposed to water shortages has focused on singular dimensions of social vulnerability, typically in relatively localized geographies, leaving us with an incomplete understanding of the national scope of the shortage risks. This study combines data on surface water shortages with the U.S. Center for Disease Control’s Social Vulnerability Index (SVI) to spatially identify clusters of high-shortage, high-vulnerability hotspots from 71 195 census tracts across the conterminous United States. We estimate that 5 percent of the population of the lower 48 states—nearly 15 million people—lives in high-SVI, high-shortage hotspot areas. We examine the relationship between exposure to water shortage and (a) SVI, (b) SVI themes, and (c) 15 indicators used to construct SVI across the U.S. and within hotspots. We find evidence that water shortages constitute an environmental injustice, as multiple dimensions of social vulnerability are disproportionately exposed to water shortages. However, the distinct dimensions of vulnerability that are correlated with a higher probability of exposure to water shortage vary across regions and within hotspots, indicating that adaptation strategies will have to be tailored to their specific contexts. This statement is to certify that all Authors have seen and approved the manuscript being submitted. We confirm that the article is the Authors’ original work and that we have no conflicts of interest.https://doi.org/10.1088/1748-9326/acb06dwaterwater shortagesocial vulnerabilitydroughtenvironmental justice
spellingShingle Leslie Sanchez
Travis Warziniack
Michael Knowles
The inequitable exposure of socially vulnerable groups to water shortages across the United States
Environmental Research Letters
water
water shortage
social vulnerability
drought
environmental justice
title The inequitable exposure of socially vulnerable groups to water shortages across the United States
title_full The inequitable exposure of socially vulnerable groups to water shortages across the United States
title_fullStr The inequitable exposure of socially vulnerable groups to water shortages across the United States
title_full_unstemmed The inequitable exposure of socially vulnerable groups to water shortages across the United States
title_short The inequitable exposure of socially vulnerable groups to water shortages across the United States
title_sort inequitable exposure of socially vulnerable groups to water shortages across the united states
topic water
water shortage
social vulnerability
drought
environmental justice
url https://doi.org/10.1088/1748-9326/acb06d
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