Climate & national securityA military view on climate change: It’s eroding our national security and we should prepare for it

By David Titley

Published 7 October 2016

U.S. military leaders and defense planners have been studying climate change for years from a perspective that rarely is mentioned in the news: as a national security threat. And they agree that it poses serious risks. Here is how military planners see this issue: We know that the climate is changing, we know why it’s changing, and we understand that change will have large impacts on our national security. Yet as a nation we still only begrudgingly take precautions. The next president will have a choice to make. One option is to continue down the path that the Obama administration has defined and develop policies, budgets, plans, and programs that flesh out the institutional framework now in place. Alternatively, he or she can call climate change a hoax manufactured by foreign governments and ignore the flashing red lights of increasing risk. The world’s ice caps will not care who is elected or what is said. They will simply continue to melt, as dictated by laws of physics. But Americans will care deeply about our policy response. Our nation’s security is at stake.

In this presidential election year we have heard much about some issues, such as immigration and trade, and less about others. For example, climate change was discussed for an estimated eighty-two seconds in the first presidential debate last week, and for just thirty-seven minutes in all presidential and vice presidential debates since the year 2000.

Many observers think climate change deserves more attention. They might be surprised to learn that U.S. military leaders and defense planners agree. The armed forces have been studying climate change for years from a perspective that rarely is mentioned in the news: as a national security threat. And they agree that it poses serious risks.

I spent thirty-two years as a meteorologist in the U.S. Navy, where I initiated and led the Navy’s Task Force on Climate Change. Here is how military planners see this issue: We know that the climate is changing, we know why it’s changing, and we understand that change will have large impacts on our national security. Yet as a nation we still only begrudgingly take precautions.

The Obama administration recently announced several actions that create a framework for addressing climate-driven security threats. But much of the hard work lies ahead – assuming that our next president understands the risks and chooses to act on them.

Climate-related disruptions
Climate change affects our security in two ways. First, it causes stresses such as water shortages and crop failures, which can exacerbate or inflame existing tensions within or between states. These problems can lead to state failure, uncontrolled migration, and ungoverned spaces.

On 21 September the National Intelligence Council issued its most recent report on implications of climate change for U.S. national security. This document represents the U.S. intelligence community’s strategic-level view. It does not come from the Intergovermental Panel on Climate Change, politicians of either party or an advocacy group, but from nonpartisan, senior U.S. intelligence professionals.

The NIC report emphasizes that the problem is not simply climate change, but the interaction of climate with other large-scale demographic and migration trends; its impacts on food, energy and health; and the stresses it will place on societies, especially fragile ones.