Increased Significance of Global Concurrent Hazards From 1981 to 2020

文献类型： 外文期刊

第一作者： Xu, Yilei

作者： Xu, Yilei;Dai, Qiang;Li, Wenhui;Zeng, Tongxiao;Zhu, Jingxuan;Han, Dawei;Yao, Yuanzhi;Zhang, Jun;Zhu, Shaonan;Xu, Yecheng

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期刊名称：EARTHS FUTURE （ 影响因子：8.2； 五年影响因子：9.5 ）

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年卷期： 2024 年 12 卷 9 期

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收录情况： SCI

摘要： The spatiotemporal overlap of multiple hazards defines what we call concurrent hazards, which usually cause more severe damage than what an isolated hazard would. Investigations of concurrent hazards at the global scale are limited. Here we first developed a novel criterion system for identifying concurrent hazards and then recognized 1,614 concurrent hazards during 1981-2020 from the 121,214 records including earthquake, storm, landslide, volcanic, wildfire and flood. Sixteen hot spot regions suffering from concurrent hazards were recognized for the first time at the global scale. By comparing two periods, 1981-2000 and 2001-2020, we found that the gross relative impact (economic damage and death) of concurrent hazards has considerably aggravated (6.3-117.0 times) in the past two decades. The low-income regions suffer more prominent increase (mostly 2-3 times of high-income regions), implying the inequitable patterns of concurrent hazard impact due to socioeconomic development. This spatial disparity entails the establishment of multidisciplinary and cross-regional collaborations in mitigating the impact of concurrent hazards. The concurrence of natural hazards can bring devastating losses at a scale well beyond any isolated hazard would have caused. This can significantly disrupt both natural environments and human societies, undermining their stability and resilience. We present a comprehensive database of concurrent and isolated hazards relying on the most up-to-date inventory of natural hazards from multiple data sources. We found that both concurrent and isolated hazards increased significantly in the past four decades, where the concurrent hazards show more prominent increase. This finding is more notable in low-income regions implying an inequitable pattern of management strategy for concurrent hazards globally. These results inform that a well-collaborated process at the global scale is recommended to mitigate the serious impacts produced by concurrent hazards. Sixteen hot spot regions are recognized from the built database of concurrent hazards during 1981-2020 The gross relative impact of concurrent hazards toward isolated hazards has been significantly enhanced in recent two decades (2001-2020) The magnification is more remarkable for low-income countries, implying the inequitable patterns of concurrent hazard impact due to socioeconomic development

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