Green defense

decarbonizing the armed forces

Authors

DOI:

https://doi.org/10.23925/2179-3565.2025v16i2p04-16

Keywords:

Defense, Decarbonization, Armed Forces, Hydrogen

Abstract

Climate change is at the forefront of global discussions, with national and international events intensifying the discourse on the topic. Researchers in the Defense sector have been conducting studies on how climate change will exacerbate insecurity and lead to armed conflicts worldwide. Meanwhile, the term decarbonization is gaining prominence across various sectors including industry, transportation, and energy generation. The conducted research presents an original investigative contribution regarding the decarbonization strategies of the Armed Forces (AF), considered leaders worldwide. For this purpose, a qualitative and bibliographic methodology is employed. Qualitative, as there is no intention to generalize results probabilistically, but rather to describe phenomena, situations, and contexts, explaining how they are and manifest themselves. Bibliographic, as it uses material published in books, documents, journals, and websites.The findings indicate that: i) with the escalation of the climate crisis and global energy transition, the North Atlantic Treaty Organization (NATO), the European Union (EU), and Eastern Armed Forces have begun to include measures to reduce fossil fuel usage in their discussions; ii) AF initiatives are in their infancy and surrounded by uncertainties; and, iii) AF from some countries lack knowledge about the hydrogen energy production process and its benefits, raising concerns about the consistency of its exploration.

Author Biography

, Exército Brasileiro

Doutor em Administração pela Pontifícia Universidade Católica do Paraná. Oficial do Exército Brasileiro. Analista no Núcleo de Estudos Estratégicos do Comando Militar da Amazônia.

 

References

Agência EPBR. (2023). Hidrogênio verde: conheça 10 projetos promissores em desenvolvimento no Brasil, 26 Abr. https://epbr.com.br/hidrogenio-verde-conheca-10-projetos-promissores-em-desenvolvimento-no-brasil/#:~:text=Unigel%20(Bahia),em%20larga%20escala%20do%20Brasil

Bairstow, J. (2019). US Army Develops Stealthy, Hydrogen Fuel Cell Powered Tanks. Energy Live News, 29 Aug. https://www.energylivenews.com/2019/08/29/us-army-takes-aim-at-stealthy-hydrogen-tanks/

Barry, B., Fetzek, S. & Emmett, C. (2022). Green defence: the defence and military implications of climate change for Europe.

International Institute for Strategic Studies, February. https://www.iiss.org/blogs/research-paper/2022/02/green-defence

Biogradlija, Arnes. (2023). H2 Energy News. Germany: The Transition to Hydrogen Power for Military Tanks, 10 July.

https://energynews.biz/germany-the-transition-to-hydrogen-power-for-military-tanks/

Brasil. (2023). Projeto de Lei 5916/23. Programa de Desenvolvimento do Hidrogênio de Baixo Carbono. Senado Federal, Brasília, DF.

Brasil. (2020). Política Nacional de Defesa e Estratégia Nacional de Defesa. Ministério da Defesa. https://www.gov.br/defesa/pt-br/arquivos/estado_e_defesa/pnd_end_congresso_.pdf

Brzoska, Michael. (2012). Climate change and the military in China, Russia, the United Kingdom, and the United States.

Bulletin of the Atomic Scientists, 68:2, 43–54. https://doi.org/10.1177/0096340212438384

Cerniauskas, S., Grube, T., Praktiknjo, A., Stolten, D. & Robinius, M. (2019). Future Hydrogen Markets for Transportation and Industry: The Impact of CO2 Taxes. Energies, 12, 4707. https://doi.org/10.3390/en12244707

Cipriani, G., Di Dio, V., Genduso, F., La Cascia, D., Liga, R., Miceli, R. Ricco Galluzzo, G. (2014). Perspective on hydrogen energy carrier and its automotive applications. Int. J. Hydrog. Energy, 39:16, 8482–8494.https://doi.org/10.1016/j.ijhydene.2014.03.174

Closson, S. (2013). The military and energy: moving the United States beyond oil. Energy Policy, 61, 306–16. https://doi.org/10.1016/j.enpol.2013.05.102

Coffman, M., Bernstein, P. & Wee, S. (2017). Electric vehicles revisited: A review of factors that affect adoption. Transp. Rev., 37, 79–93. https://doi.org/10.1080/01441647.2016.1217282

Dalby, Simon. (2018). Firepower: geopolitics cultures in the Anthropocene. Geopolitics 23:3, 718–42. https://doi.org/10.1080/14650045.2017.1344835

Darbyshire, Eoghan. (2021). How does war contribute to climate change? Conflict and Environment Observatory, 14 June, https://ceobs.org/how-does-war-contribute-to-climate-change/

Depledge, D. (2023). Low-carbon warfare: climate change, net zero and military operations. International Affairs, 99, 2, 667–685. https://doi.org/10.1093/ia/iiad001

Dias, D. (2016). Quatro Rodas. Chevrolet Colorado ZH2: uma S10 a hidrogênio pronta para a guerra, 23 Nov. https://quatrorodas.abril.com.br/noticias/chevrolet-colorado-zh2-uma-s10-a-hidrogenio-pronta-para-a-guerra

Finkbeiner, Ann & van Noorden, Richard. (2022). Will war in Ukraine mark a new era for European defence research. Nature, 17 Aug., https://doi.org/10.1038/d41586-022-02185-x

Fiott, Daniel. (2014). Reducing the environmental bootprint? Competition and regulation in the greening of Europe’s defense sector. Organization and Environment, 27, 3, 263–78. https://doi.org/10.1177/1086026614528807

Hienuki, S., Hirayama, Y., Shibutani, T., Sakamoto, J., Nakayama, J. & Miyake, A. (2019). How knowledge about or experience with hydrogen fueling stations improves their public acceptance. Sustainability, 11, 6339. https://doi.org/10.3390/su11226339

Intergovernmental Panel on Climate Change. IPCC. (2018). Summary for policymakers. Cambridge: Cambridge University Press, 2018.

Jayaram, Dhanasree. (2021). ‘Climatizing’ military strategy? A case study of the Indian armed forces. International Politics, 58, 619–39. https://doi.org/10.1057/s41311-020-00247-3

Klare, M. T. (2019). All hell breaking loose: the Pentagon’s perspective on climate change. New York: Metropolitan Books.

Khzouz, M., Gkanas, E.I., Girella, A.; Statheros, T., & Milanese, C. (2020). Sustainable hydrogen production via LiH hydrolysis for unmanned air vehicle (UAV) applications. Int. J. Hydrog. Energy, 45:8, 5384–5394. https://doi.org/10.1016/j.ijhydene.2019.05.189

Lapeña-Rey, N., Blanco, J.A., Ferreyra, E., Lemus, J.L., Pereira, S. & Serrot, E. (2017). A fuel cell powered unmanned aerial vehicle for low altitude surveillance missions. Int. J. Hydrog. Energy, 42:10, 6926–6940. https://doi.org/10.1016/j.ijhydene.2017.01.137

Larsen, K. K. (2015). Unfolding Green Defense: linking green technologies and strategies to current security challenges in nato and the nato member states. Centre for Military Studies: Copenhagen, Denmark, Dec. https://cms.polsci.ku.dk/publikationer/unfolding-green-defense/Undfolding_Green_Defense_CMS-rapport.pdf

McKinsey & Company. (2022). The net-zero transition: What it would cost, What it could bring, Jan. https://www.mckinsey.com/capabilities/sustainability/our-insights/the-net-zero-transition-what-it-would-cost-what-it-could-bring

Michaelowa, Alex & Koch, Tobias. (2001). Military emissions, armed conflicts, border changes and the Kyoto Protocol. Climatic Change, 50:4, 384-394. https://doi.org/10.1023/A:1010695312025

NATO. (2021). Remarks by NATO Secretary General Jens Stoltenberg at the high-level roundtable. Climate, Peace and stability: weathering risk through COP and beyond in Glasgow, UK, 2 Nov., https://www.nato.int/cps/en/natohq/opinions_188262.htm

Noussan, M., Raimondi, P.P., Scita, R. & Hafner, M. (2020). The Role of Green and Blue Hydrogen in the Energy Transition - A Technological and Geopolitical Perspective. Sustainability, 13:1, 298. https://doi.org/10.3390/su13010298

Nugee, Richard. (2021). Climate change: maintaining freedom of manoeuvre. Wavell Room, 15 Sept. https://wavellroom.com/2021/09/15/climate-change-maintaining-freedom-of-manoeuvre/

Owen-Burge, C. (2021). MOD climate chief: inaction will lead to a “more expensive, weaker military”. Race to Zero, 25 May. https://climatechampions.unfccc.int/mod-climate-chief-inaction-will-lead-to-a-more-expensive-weaker-military/

Pfeifer, S. (2021). Rise of ESG adds to pressure on European defence companies. Financial Times, 1 Dec. https://www.ft.com/content/e14ea515-a6f3-4763-9def-7bc40d3b2e4a

Reis, D. (2023). Serviços em Destaque. O que são Power-to-X e exemplos mais comuns, 10 Jan. https://www.servicoemdestaque.com.br/power-to-x/

Rühle, M. (2020). Scoping NATO’s Environment Security Agenda. NDC Policy Brief. https://www.jstor.org/stable/resrep23666

Ruszel, M. (2018). NATO and the European Union towards Problems of International Security in the 21st Century. In: A Transatlantic or European Perspective of World Affairs. Podraza, A. (Ed.). Biblioteca Benjamim Frankin, 1, 169–182.

Samaras, C., Nuttall, W. J. & Bazilian, M. (2019). ‘Energy and the military: Convergence of security, economic, and environmental decision-making’, Energy Strategy Reviews, 26. https://www.sciencedirect.com/science/article/pii/S2211467X19301026

Sobon, A., Sły´s, D., Ruszel, M. & Wiacek, A. (2021). Prospects for the Use of Hydrogen in the Armed Forces. Energies, 14, 7089. https://doi.org/10.3390/en14217089

Weng, C. K. & Boehmer, K. (2006). Launching of ISO 14064 for greenhouse gas accounting and verification. ISO Manag. Syst., 15, 14–16. https://www.iso.org/files/live/sites/isoorg/files/archive/pdf/en/greenhouse.pdf

Wenger, D., Polifke, W., Schmidt-Ihn, E., Abdel-Baset, T. & Maus, S. (2009). Comments on solid state hydrogen storage systems design for fuel cell vehicles. Int. J. Hydrog. Energy, 34:15, 6265–6270. https://doi.org/10.1016/j.ijhydene.2009.05.072

Westing, Arthur. (2008). The impact of war on the environment. In: Levy, B. S. & Sidel, V. W. (Eds.). War and public health, 2nd. Oxford: Oxford University Press, 69–84.

Downloads

Published

2025-06-25

Issue

Section

Papers