The challenge of closing the climate adaptation gap for water supply utilities

19854 7 106828 2 323966 document 106828 s43247-024-01272-3.pdf application/pdf 057062d1e853cf4e804cd6a3834a59c0 MD5 1962664 2024-07-03 14:43:12 https://pure.iiasa.ac.at/id/eprint/19854/1/s43247-024-01272-3.pdf 19854 1 1 application/pdf text en public cc_by_4

s43247-024-01272-3.pdf

published 106829 1 323972 document 106829 indexcodes.txt text/x-c++ f4d23c8298c67abcb39c94f30388d87b MD5 17664 2024-07-03 14:53:04 https://pure.iiasa.ac.at/id/eprint/19854/2/indexcodes.txt 19854 2 2 text/x-c++ other Generate index codes conversion from text to indexcodes en public

indexcodes.txt

lightbox.jpg

preview.jpg

medium.jpg

small.jpg

http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/106828 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/106828 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/106828 archive 353 disk0/00/01/98/54 2024-07-03 14:44:33 2024-09-09 12:38:03 2024-07-03 14:44:33 article show Becher O. Smilovic M. 2211 0000-0001-9651-8821 Verschuur J. Pant R. Tramberend S. 1614 0000-0002-7024-1075 Hall J. The challenge of closing the climate adaptation gap for water supply utilities pub BNR WAT prog_ysp Many drinking water utilities face immense challenges in supplying sustainable, drought-resilient services to households. Here we propose a quantified framework to perform drought risk analysis on ~5600 potable water supply utilities and evaluate the benefit of adaptation actions. We identify global hotspots of present-day and mid-century drought risk under future scenarios of climate change and demand growth (namely, SSP1-2.6, SSP3-7.0, SSP5-8.5). We estimate the mean rate of unsustainable or disrupted utility supply at 15% (interquartile range, 0–26%) and project a global increase in risk of between 30–45% under future scenarios. Implementing the most cost-effective adaptation action identified per utility would mitigate additional future risk by 75–80%. However, implementing the subset of cost-effective options that generate sufficient tariff revenue to provide a benefit-cost ratio that is greater than 1 would only achieve 5–20% of this benefit. The results underline the challenge of attracting the financing required to close the climate adaptation gap for water supply utilities. 2024-06-29 published Nature Publishing Group doi:10.1038/s43247-024-01272-3 3079 312 public Communications Earth & Environment 5 1 e356 TRUE 2662-4435 no info:eu-repo/semantics/article