Dynamics of the polycrisis: temporal trends, spatial distribution, and co-occurrences of national shocks (1970-2019)
Por:
Delannoy L., Verzier A., Bastien-Olvera B.A., Benra F., Nyström M., Jørgensen P.S.
Publicada:
1 ene 2025
Resumen:
Non-Technical Summary. In response to the concerns of a growing number of crises, we trace the temporal trends, distribution, and co-occurrences of shocks - sudden events with noticeable impacts - on 175 countries from 1970 to 2019. Our analysis shows that shocks have not evolved uniformly over time and space: after becoming more co-occurring between 1970 and 2000, they then showed a regionally dependent shift in patterns. Our results highlight that regional differentiation is not incidental but constitutive of polycrisis dynamics, and that any effort to theorize, anticipate, or navigate polycrisis must account for this spatial heterogeneity. Technical Summary. Polycrisis has emerged as a new property of the Anthropocene. Defined as the convergence of crises across multiple systems, polycrisis calls for a paradigm shift in how crises are perceived and managed. Characterizing polycrisis dynamics is the first step in that direction but is made difficult by the complex and non-linear mechanisms at play. To overcome this challenge, we adopt a social-ecological systems approach to decompose polycrisis dynamics into two interrelated processes: shocks - sudden events with noticeable impacts, and creeping changes - slow processes that have a potential significant impact on society or the biosphere. We then develop and analyse a harmonized database capturing the occurrence of six categories of shocks (climatic, geophysical, ecological, economic, technological, and conflict-related) across 175 countries between 1970 and 2019. Our analysis reveals a significant rise in shock co-occurrences until 2000, particularly at the intersection of conflict, climate, and technological disruptions. After 2000, co-occurrence began plateauing or declining in all regions, yet at different levels. Our findings highlight the importance of a regionalized and typologically nuanced approach to understanding polycrisis. Our work also paves the way to an integration of polycrisis theory and multi-hazard methodologies for developing a more effective and crisis management ecosystem. Social Media Summary. Dynamics of the polycrisis reveal regional differences, with a possible shift in the interaction of shocks from 2000. © The Author(s), 2025.
Filiaciones:
Delannoy L.:
Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden
CentraleSupélec, Gif-sur-Yvette, France
Swedish Centre for Impacts of Climate Extremes (climes), Uppsala University, Uppsala, Sweden
Verzier A.:
Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden
CentraleSupélec, Gif-sur-Yvette, France
Bastien-Olvera B.A.:
Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Mexico City, Mexico
Scripps Institution of Oceanography, University of California, San Diego, CA, United States
RFF-CMCC European Institute on Economics and the Environment (EIEE), Fondazione Centro Euromediterraneo sui Cambiamenti Climatici (CMCC), Milan, Italy
Benra F.:
Social Ecological Systems Institute, School of Sustainability, Leuphana University, Lüneburg, Germany
Nyström M.:
Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
Jørgensen P.S.:
Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Science, Stockholm, Sweden
CentraleSupélec, Gif-sur-Yvette, France
Anthropocene Laboratory, Royal Swedish Academy of Sciences, Stockholm, Sweden
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