Publications

Louis Delannoy, Alexandre Verzier, Bernardo A. Bastien-Olvera, Felipe Benra, Magnus Nyström, Peter Søgaard Jørgensen. 2025. Dynamics of the polycrisis: temporal trends, spatial distribution, and co-occurrences of national shocks (1970–2019). Global Sustainability. https://doi.org/10.1017/sus.2025.10008

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...

Louis Delannoy, Matthieu Auzanneau, Baptiste Andrieu, Olivier Vidal, Pierre-Yves Longaretti, Emmanuel Prados, David J. Murphy, Roger W. Bentley, Michael Carbajales-Dale, Marco Raugei, Mikael Höök, Victor Court, Carey W. King, Florian Fizaine, Pierre Jacques, Matthew Kuperus Heun, Andrew Jackson, Charles Guay-Boutet, Emmanuel Aramendia, Jianliang Wang, Hugo Le Boulzec, Charles A.S. Hall. 2024. Emerging consensus on net energy paves the way for improved integrated assessment modeling. Energy & Environmental Science. https://doi.org/10.1039/D3EE00772C

Extracting, processing, and delivering energy requires energy itself, which reduces the net energy available to society and yields considerable socioeconomic implications. Yet, most mitigation pathways and transition models overlook net energy feedbacks, specifically related to the decline in the quality of fossil fuel deposits, as well as energy requirements of the energy transition. Here, we summarize our position across 8 k...