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DoD Climate Change Adaptation Roadmap
Climate change will affect the Department of Defense's ability to defend the Nation and poses immediate risks to U.S. national security.
Among the future trends that will impact our national security is climate change. Rising global temperatures, changing precipitation patterns, climbing sea levels, and more extreme weather events will intensify the challenges of global instability, hunger, poverty, and conflict. They will likely lead to food and water shortages, pandemic disease, disputes over refugees and resources, and destruction by natural disasters in regions across the globe.
In our defense strategy, we refer to climate change as a "threat multiplier" because it has the potential to exacerbate many of the challenges we are dealing with today - from infectious disease to terrorism. We are already beginning to see some of these impacts.
http://www.acq.osd.mil/ie/download/CCARprint.pdf
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