Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate change

Abstract Under climate change, China faces intensifying compound extreme events with serious socio-economic ramifications, yet their future variations remain poorly understood. Here, we estimate historical hotspots and future changes of two typical compound events, i.e., sequential heatwave and prec...

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Main Authors: Pei Fang, Taihua Wang, Dawen Yang, Lihua Tang, Yuting Yang
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:npj Climate and Atmospheric Science
Online Access:https://doi.org/10.1038/s41612-025-00910-7
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author Pei Fang
Taihua Wang
Dawen Yang
Lihua Tang
Yuting Yang
author_facet Pei Fang
Taihua Wang
Dawen Yang
Lihua Tang
Yuting Yang
author_sort Pei Fang
collection DOAJ
description Abstract Under climate change, China faces intensifying compound extreme events with serious socio-economic ramifications, yet their future variations remain poorly understood. Here, we estimate historical hotspots and future changes of two typical compound events, i.e., sequential heatwave and precipitation (SHP) and concurrent drought and heatwave (CDH) across China, leveraging a bivariate bias correction method to adjust projections from global climate models. Results show substantial future increases in frequency, duration, and magnitude for both events, with the durations projected to double nationwide. The increases are more evident under higher emission scenarios, and could be largely underestimated if neglecting variable dependence during bias correction process. The projected changes will escalate socio-economic exposure across China’s major urban clusters, among which Guangdong-Hong Kong-Macao will face the highest risk. Our findings underscore the necessity of carbon emission controls, and call for adaptive measures to mitigate the threats induced by rising compound hazards in a changing climate.
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institution Kabale University
issn 2397-3722
language English
publishDate 2025-01-01
publisher Nature Portfolio
record_format Article
series npj Climate and Atmospheric Science
spelling doaj-art-892124653717474f9c5679363358b8442025-01-19T12:16:16ZengNature Portfolionpj Climate and Atmospheric Science2397-37222025-01-018111010.1038/s41612-025-00910-7Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate changePei Fang0Taihua Wang1Dawen Yang2Lihua Tang3Yuting Yang4State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua UniversityState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua UniversityState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua UniversityState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua UniversityState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua UniversityAbstract Under climate change, China faces intensifying compound extreme events with serious socio-economic ramifications, yet their future variations remain poorly understood. Here, we estimate historical hotspots and future changes of two typical compound events, i.e., sequential heatwave and precipitation (SHP) and concurrent drought and heatwave (CDH) across China, leveraging a bivariate bias correction method to adjust projections from global climate models. Results show substantial future increases in frequency, duration, and magnitude for both events, with the durations projected to double nationwide. The increases are more evident under higher emission scenarios, and could be largely underestimated if neglecting variable dependence during bias correction process. The projected changes will escalate socio-economic exposure across China’s major urban clusters, among which Guangdong-Hong Kong-Macao will face the highest risk. Our findings underscore the necessity of carbon emission controls, and call for adaptive measures to mitigate the threats induced by rising compound hazards in a changing climate.https://doi.org/10.1038/s41612-025-00910-7
spellingShingle Pei Fang
Taihua Wang
Dawen Yang
Lihua Tang
Yuting Yang
Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate change
npj Climate and Atmospheric Science
title Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate change
title_full Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate change
title_fullStr Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate change
title_full_unstemmed Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate change
title_short Substantial increases in compound climate extremes and associated socio-economic exposure across China under future climate change
title_sort substantial increases in compound climate extremes and associated socio economic exposure across china under future climate change
url https://doi.org/10.1038/s41612-025-00910-7
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