Americans increasingly say they have personally experienced global warming
The proportion of Americans who are very worried about global warming has more than tripled since its lowest point in 2011.
The proportion of Americans who are very worried about global warming has more than tripled since its lowest point in 2011.
The report responds to section 335 of the National Defense Authorization Act for Fiscal Year 2018 (Public Law 115-91). The report warns that the effects of climate change are a national security issue with potential impacts to Department of Defense (DoD or the Department) missions, operational plans, and installations.