Abstract
Antarctica, long considered an environmental sanctuary, now confronts accelerating, complex and inter-related conservation challenges. The vast size and remote location of the continent introduce substantial uncertainty in understanding and predicting these threats. Here, using strategic foresight techniques, we synthesized insights from a global horizon scan with 131 experts from 42 countries. We identified ten emerging conservation challenges across six thematic categories. Key issues included extreme precipitation, emerging animal pathogens, human pandemics, security threats, reduced cooperation among Antarctic Treaty parties and potential agricultural expansion. Several of these challenges stem from persistent underlying drivers, revealing how longstanding processes are giving rise to new and increasingly acute conservation concerns. Others, driven by global disruptions, have no historical precedent in the region but increasingly constrain decision-making and international coordination. This horizon scan reveals substantial limitations in the ability of the Antarctic Treaty system to address these challenges, underscoring the need to reassess existing governance mechanisms to protect the unique ecosystems of Antarctica and its vital role in the global climate system.
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Data availability
Anonymized questionnaire data supporting this study are publicly available at https://doi.org/10.25909/29265767.
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Acknowledgements
We are grateful to the 131 expert participants for providing their insights and expertise, which were essential to the success of this horizon scan. We thank the following experts (listed in alphabetical order by surname) and eight anonymous experts: B. J. Adams, N. Akçar, B. Alexandrov, S. A. Alias, J. L. Baeseman, S. Batista, J. Benayas, D. M. Bergstrom, R. Bialik, D. Blok, C. Le Bohec, P. Bohlin-Nizzetto, R. Bojariu, C. B. Chirinos, A. Choquet, C. Christian, K. Chwedorzewska, S. J. S. Colina, P. Convey, I. Corsi, D. A. Cowan, K. Crosbie, M. Cuba-Díaz, H. H. H. Delgado, C. Devine, R. B. Dunbar, A. Eijs, J. Elster, N. S. Ergüven, H. Farjami, W. Fontes, R. Forsberg, J. Francis, B. García, H. C. Goh, H. D. Granados, S. Grant, G. M. Greer, M. Greve, M. Guglielmin, S. Hain, C. D. Hansen, D. Harakalova, C. Havermans, I. Heidbrink, D. S. Hik, J. van den Hoff, K. A. Hughes, J. Jabbour, T. James, P. T. Jayachandran, S. Kaye, J.-H. Kim, T.-W. Kim, T. Kukharchyk, H. Kuosa, C. Lavery, E. Leane, J. Lee, P. T. Lepe, M. Leppe, M. Lewandowski, D. Liggett, C. Lüdecke, A. Lynnes, W. Majewski, T. P. Makhalanyane, A. Mancilla, S. Marinsek, K. Matsuoka, B. Meyer, H. Moreano, P. Morozova, T. Naish, C. Nath, L. Nedbalová, H. Nielsen, B. Njåstad, D. Nývlt, J. O’Reilly, J. E. A. Pallares, N. C. Pant, F. Pattyn, L. S. Peck, C. Poirot, V. Pomelov, C. Purcarea, A. Van de Putte, G. Rachlewicz, M. Raphael, K. Reid, D. Renault, S. Rintoul, W. A. Rios-Angulo, P. Roberts, S. A. Robinson, Y. Ropert-Coudert, J. Rumble, C. X. Salinas, L. De Santis, I. R. Schloss, E. R. Secchi, M. A. Sewell, M. Sidoroff, E. Sikes, J. C. Simões, J. Smith, T.-O. Soyol-Erdene, M. Sparrow, C. Summerhayes, P. Tejedo, A. Terauds, A. K. Tiwari, P. Uotila, P. Valdespino, B. J. van Vuuren, D. H. Wall, L.-M. H. van der Watt, G. M. Watters, D. C. Welsford, A. Wilmotte, J. Xavier, A. Yernazarova and A. Yılmaz. We thank J. Hopf of Knowlegible designs for creating Fig. 2. Z.T.C. would additionally like to thank L. Botelho for support in framing the paper, as well as R. Hamilton and A. Purich for expertise on individual sections. This work was supported by ARC SRIEAS grant no. SR200100005 Securing Antarctica’s Environmental Future.
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J.L.B., K.A.W. and J.D.S. conceived the initial idea. J.L.B., J.D.S., K.A.W. and Z.T.C. designed the study with support from J.C.W., M.A.B. and S.L.C. Z.T.C. collected the data with support from J.D.S. and S.L.C., and analysed the data with support from M.B. Z.T.C. wrote the paper with support from M.B. and S.L.C. All authors contributed to editing the paper and approved the final version for submission.
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Extended data
Extended Data Fig. 1 Expert participant countries of employment for round one of the horizon scan.
Darker shading signifies greater representation from an individual country. Countries represented from the Global North were Australia, Belgium, Bulgaria, Czechia, Finland, France, Germany, Italy, South Korea, Netherlands, New Zealand, Norway, Poland, Russia, Spain, Sweden, United Kingdom, United States, Belarus, Canada, and Denmark. Countries represented from the Global South were Argentina, Brazil, Chile, China, Ecuador, India, Peru, South Africa, Uruguay, Columbia, Kazakhstan, Malaysia, Mongolia, Portugal, Romania, Slovakia, Turkey, Venezuela, Iran, Kenya, and Mexico.
Extended Data Fig. 2 Example of the frequency histograms provided to each participant expert during the third-round questionnaire of the horizon scan.
Frequency histograms were organised by extent of impact, likelihood of impact, and severity of impact for each conservation challenge. The • symbol signifies the expert’s individually selected score. Conservation challenges shown include: (panel a) extreme precipitation events, (panel b) emerging animal pathogens, and (panel c) iceberg harvesting. Note that the names of the challenges in panels b and c have been revised in the final manuscript to more accurately reflect their thematic scope.
Extended Data Fig. 3 Final scores for each emerging conservation challenge, as identified by the group of Antarctic experts participating in this horizon scan.
Frequency histograms were organised by extent of impact, likelihood of impact, and severity of impact for each conservation challenge.
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Carter, Z.T., Bode, M., Chown, S.L. et al. Emerging threats to Antarctic conservation. Nat Ecol Evol 9, 1885–1896 (2025). https://doi.org/10.1038/s41559-025-02814-4
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DOI: https://doi.org/10.1038/s41559-025-02814-4
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