Despite an increase in defence spending globally, militaries are falling behind in adapting to the impacts of climate change, according to experts. The defence sector is estimated to be responsible for a significant 5.5% of global emissions annually, highlighting the urgent need for green practices within militaries.
Militaries are now beginning to focus on reducing their environmental impact, with the realization that sustainable practices not only align with climate goals but also enhance operational efficiency and readiness. Strategies such as using renewable energy sources, adopting hybrid-electric drive systems for vehicles, and implementing heat management technologies are being explored to reduce emissions and improve overall sustainability.
NATO countries, including Norway, the UK, and France, are taking steps to green their military operations, with initiatives such as adopting flight simulators, developing heat-resistant uniforms, and setting ambitious targets to achieve net-zero emissions by 2050. However, transparency in reporting military emissions and a broader shift towards sustainability reforms are needed to address the growing climate crisis.
Despite some progress, sustainability remains a secondary concern for many defence sectors, with concerns that climate adaptation may not be prioritized amidst geopolitical tensions. Experts suggest that immediate action is required to avoid locking in carbon-intensive technologies and mitigate the impact of military emissions on national security and the environment.
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