The human and social impacts of climate overshoot
The scientific community has produced increasingly robust knowledge and evidence of the physical impacts of warming on time scales of tens of decades and longer. However, the social and humanitarian impacts of climate overshoot remain largely unknown. As we quickly approach the Paris Agreement's aspirational target of 1.5 °C of global mean temperature rise, new and dynamic climate and social realities of climate overshoot must be considered and managed. Here, we outline 5 factors influencing human and social climate overshoot impacts, describe potential post-peak behavior that would lead to varied impacts, and call for enhancing action to fill pressing knowledge, data, and policy gaps to understand the risks to human and social systems.
Authors
- Joshua Fisher (ORCID: https://orcid.org/0000-0003-1054-3132)
- Andrew Kruczkiewicz (ORCID: https://orcid.org/0000-0002-2425-7308)
- Matthias Garschagen (ORCID: https://orcid.org/0000-0001-9492-4463)
- Zinta Zommers (ORCID: https://orcid.org/0000-0003-4755-6279)
- Joyce Kimutai (ORCID: https://orcid.org/0000-0002-9066-5975)
Institutions
- Hiroshima University (JP)
- Climate Central (US)
- Kenya Wildlife Service (KE)
- United Nations Office for the Coordination of Humanitarian Affairs (US)
- Climate Centre (NL)
- Higashihiroshima Medical Center (JP)
- Beijing Meteorological Bureau (CN)
- Imperial College London (GB)
- Ludwig-Maximilians-Universität München (DE)
- Philadelphia University (US)
- University of Twente (NL)
Publication Details
- Journal
- PNAS Nexus
- Published
- 2025-10-18
- DOI
- https://doi.org/10.1093/pnasnexus/pgaf332
- Primary Topic
- demographic modeling and climate adaptation
- Type
- article
- Field-Weighted Citation Impact
- 0.00