Read this CNA report by senior U.S. military personnel (admirals, generals):
"Projected climate change poses a serious threat to America’s national security... The national security consequences of climate change should be fully integrated into national security and national defense strategies... "
The report emphasizes risk of destabilizing effects and failed states, especially in developing countries.
Future mass migrations due to climate change impacts, including water shortages in many locations, will add to global tensions and impact national security worldwide.
Graphic: Illustrates human migration in 2008.