NATO Ülkelerinde Militarizasyonun İklim Değişikliği Üzerindeki Etkileri: Kurumsal Kalitenin Düzenleyici Rolüne İlişkin Bir İnceleme

Öz

Askeri harcamaların çevresel etkileri, özellikle NATO ülkeleri açısından, artan jeopolitik gerilimler ortamında tüm zamanların en yüksek seviyelerine ulaşırken, iklim politikasının kritik ancak az çalışılmış bir boyutu hâline gelmiştir; zira bu ülkeler küresel savunma harcamalarının büyük bir kısmını oluşturmaktadır. Bu çalışma, 1996–2023 döneminde 16 NATO üyesi ülkede, askeri harcamaların karbondioksit (CO₂) emisyonları üzerindeki etkisini incelerken, Çevresel Kuznets Eğrisi (EKC) çerçevesinde kurumsal kalitenin düzenleyici etkilerini özel olarak ele almaktadır. Araştırma, Yatay Kesit Genişletilmiş Otoregresif Dağıtılmış Gecikme (CS-ARDL) tahmincisini kullanarak eğim heterojenliğini, karma bütünleşme derecelerini ve yatay kesit bağımlılığını dikkate almaktadır. Kurumsal kaliteyi ölçen bileşik bir endeks oluşturmak amacıyla altı yönetişim değişkeni Temel Bileşenler Analizi (PCA) kullanılarak bir araya getirilmiştir. Bulgular, enerji kullanımı, ekonomik genişleme ve askeri harcamaların hem kısa hem de uzun dönemde CO₂ emisyonlarını önemli ölçüde artırdığını göstermektedir. Ancak, negatif ve güçlü bir etkileşim terimi ile ortaya konduğu üzere, yüksek kurumsal kalite yalnızca çevresel sonuçları doğrudan iyileştirmekle kalmamakta, aynı zamanda askeri harcamaların emisyon artırıcı etkisini de önemli ölçüde azaltmaktadır. Ayrıca, kısa döneme kıyasla uzun dönemde gelir esnekliğinin azalması, EKC’nin geçerliliğini desteklemektedir. Bu sonuçlar, militarizasyonun çevresel etkilerinin kaçınılmaz olmadığını; aksine bu etkilerin büyük ölçüde yönetişim kalitesinden etkilendiğini ima etmektedir. Çalışma, askeri ve iklim planlarına kurumsal reformların dâhil edilmesinin önemini vurgulamakta ve çevresel sürdürülebilirliği güvenlik gereklilikleriyle dengelemeyi amaçlayan NATO ülkeleri için zamanında politika içgörüleri sunmaktadır.

Anahtar Kelimeler

• Askeri harcamalar
• Kurumsal kalite
• Çevresel Kuznets Eğrisi
• NATO ülkeleri
• CO₂ emisyonları
• CS-ARDL

The impact of militarization of NATO countries on climate change: Investigation of the regulatory role of Institutional Quality

Öz

The environmental effects of military expenditures have become a crucial but little-studied aspect of climate policy as it rises to all-time highs amid escalating geopolitical tensions, especially for NATO nations that account for the majority of global defence spending. This study specifically examines the moderating effects of institutional quality within the Environmental Kuznets Curve (EKC) framework as it examines the effect of military spending on carbon dioxide (CO₂) emissions in 16 NATO member states from 1996 to 2023. The research takes into consideration slope heterogeneity, mixed orders of integration, and cross-sectional dependence using the Cross-Sectionally Augmented Autoregressive Distributed Lag (CS-ARDL) estimator. Six governance variables are used in Principal Component Analysis to create a composite index that measures institutional quality. The findings show that energy use, economic expansion, and military spending all considerably raise CO2 emissions over the short and long terms. However, as demonstrated by a negative and robust interaction term, excellent institutional quality not only directly improves environmental outcomes but also considerably reduces the emission-intensifying effect of military spending. Furthermore, the reduced long-run income elasticity compared to the short-run supports the validity of the EKC. These results imply that the environmental impact of militarization is significantly influenced by the quality of governance rather than being inevitable. The paper emphasizes the significance of incorporating institutional reforms into military and climate plans, providing NATO nations looking to balance environmental sustainability with security imperatives with timely policy insights.

Anahtar Kelimeler

• Military expenditure
• Institutional quality
• Environmental Kuznets Curve
• NATO countries
• CO₂ emissions
• CS-ARDL

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