Deadly heat waves projected in the densely populated agricultural regions of South Asia

The risk associated with any climate change impact reflects intensity of natural hazard and level of human vulnerability. Previous work has shown that a wet-bulb temperature of 35°C can be considered an upper limit on human survivability. On the basis of an ensemble of high-resolution climate change...

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Main Authors: Im, Eun-Soon, Pal, Jeremy S., Eltahir, Elfatih A. B.
Other Authors: Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Format: Article
Published: American Association for the Advancement of Science (AAAS) 2018
Online Access:http://hdl.handle.net/1721.1/113642
https://orcid.org/0000-0002-6148-7997
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author Im, Eun-Soon
Pal, Jeremy S.
Eltahir, Elfatih A. B.
author2 Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
author_facet Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Im, Eun-Soon
Pal, Jeremy S.
Eltahir, Elfatih A. B.
author_sort Im, Eun-Soon
collection MIT
description The risk associated with any climate change impact reflects intensity of natural hazard and level of human vulnerability. Previous work has shown that a wet-bulb temperature of 35°C can be considered an upper limit on human survivability. On the basis of an ensemble of high-resolution climate change simulations, we project that extremes of wet-bulb temperature in South Asia are likely to approach and, in a few locations, exceed this critical threshold by the late 21st century under the business-as-usual scenario of future greenhouse gas emissions. The most intense hazard from extreme future heat waves is concentrated around densely populated agricultural regions of the Ganges and Indus river basins. Climate change, without mitigation, presents a serious and unique risk in South Asia, a region inhabited by about one-fifth of the global human population, due to an unprecedented combination of severe natural hazard and acute vulnerability.
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spelling mit-1721.1/1136422022-10-02T00:07:52Z Deadly heat waves projected in the densely populated agricultural regions of South Asia Im, Eun-Soon Pal, Jeremy S. Eltahir, Elfatih A. B. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Parsons Laboratory for Environmental Science and Engineering (Massachusetts Institute of Technology) Eltahir, Elfatih A. B. The risk associated with any climate change impact reflects intensity of natural hazard and level of human vulnerability. Previous work has shown that a wet-bulb temperature of 35°C can be considered an upper limit on human survivability. On the basis of an ensemble of high-resolution climate change simulations, we project that extremes of wet-bulb temperature in South Asia are likely to approach and, in a few locations, exceed this critical threshold by the late 21st century under the business-as-usual scenario of future greenhouse gas emissions. The most intense hazard from extreme future heat waves is concentrated around densely populated agricultural regions of the Ganges and Indus river basins. Climate change, without mitigation, presents a serious and unique risk in South Asia, a region inhabited by about one-fifth of the global human population, due to an unprecedented combination of severe natural hazard and acute vulnerability. 2018-02-13T20:42:03Z 2018-02-13T20:42:03Z 2017-08 2016-12 2018-02-09T18:26:22Z Article http://purl.org/eprint/type/JournalArticle 2375-2548 http://hdl.handle.net/1721.1/113642 Im, Eun-Soon, Jeremy S. Pal, and Elfatih A. B. Eltahir. “Deadly Heat Waves Projected in the Densely Populated Agricultural Regions of South Asia.” Science Advances 3, no. 8 (August 2017): e1603322. https://orcid.org/0000-0002-6148-7997 http://dx.doi.org/10.1126/SCIADV.1603322 Science Advances Attribution-NonCommercial 2.0 Generic (CC BY-NC 2.0) https://creativecommons.org/licenses/by-nc/2.0/ application/pdf American Association for the Advancement of Science (AAAS)
spellingShingle Im, Eun-Soon
Pal, Jeremy S.
Eltahir, Elfatih A. B.
Deadly heat waves projected in the densely populated agricultural regions of South Asia
title Deadly heat waves projected in the densely populated agricultural regions of South Asia
title_full Deadly heat waves projected in the densely populated agricultural regions of South Asia
title_fullStr Deadly heat waves projected in the densely populated agricultural regions of South Asia
title_full_unstemmed Deadly heat waves projected in the densely populated agricultural regions of South Asia
title_short Deadly heat waves projected in the densely populated agricultural regions of South Asia
title_sort deadly heat waves projected in the densely populated agricultural regions of south asia
url http://hdl.handle.net/1721.1/113642
https://orcid.org/0000-0002-6148-7997
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