Environmental Science
Climate Change as a Security Issue in International Relations
Quick fact
The UN Security Council has debated climate change as a security threat, with some nations warning that climate impacts could 'multiply' existing conflicts.
Why this is interesting
When we hear about security threats, we usually think of wars and weapons. But what if a drought or a flood could be just as dangerous?
Read the full explanation
Understanding Climate Change as a Security Issue in International Relations
Traditionally, international relations focused on military security—threats that come from other states. But climate change is a different kind of threat: it doesn't have a single enemy. Instead, it alters the environment in which we live, making already-existing problems worse. For example, when droughts dry up farmland, and water becomes scarce, sometimes people fight over what's left. When people lose their homes due to rising seas or storms, they may move to other places, creating friction with those who already live there. So, climate change acts like a 'risk multiplier'—it doesn't directly cause a war, but it adds pressure that can push unstable situations over the edge. Governments and international bodies now debate whether climate change should be treated like a security issue, meaning they need to prepare for its impacts on borders, migration, and global stability.
A deeper explanation
The mechanism linking climate and security goes through several pathways. Extreme weather and slow-onset changes like desertification reduce the availability of vital resources—water, food, and arable land. When resources are scarce, competition rises, especially in areas with weak governments. A state that cannot provide for its people or protect them from crises becomes fragile, and this can lead to internal conflict or even state collapse. Also, climate-induced migration can destabilize regions as people move across borders, affecting the political and social order. These pressures do not operate in isolation; they interact with existing ethnic tensions, poverty, and governance failures. This is why climate change is called a 'threat multiplier'—it amplifies existing vulnerabilities. The security framing matters because it changes how policymakers and institutions respond: they may allocate military resources to disaster response, create climate adaptation plans, and push for international cooperation. The challenge is that climate change is a global issue requiring collective action, but security issues often trigger competitive, self-interested responses. Understanding this framing helps us see why some nations demand emissions reductions as a security measure and why others resist.