* It can lead to conflict and instability around the world. As sea levels rise, populations are displaced and resources become scarce, the potential for conflict increases. For example, Syria's civil war was exacerbated by a severe drought that caused widespread crop failures and displacement of farmers.

* Climate change can contribute to the spread of disease. As temperatures rise, vectors for diseases such as malaria, dengue fever, and Zika virus are expanding their range into new areas. This poses a threat to both military personnel and civilian populations.

* Climate change can damage military infrastructure. Rising sea levels and more frequent and severe storms can damage or destroy military bases, ports, and other facilities. This can hinder the ability of the United States to respond to crises around the world.

* Climate change can affect military operations. More extreme weather events, such as heat waves, droughts, floods, and wildfires, can make it more difficult for the military to train and deploy its forces. This can also lead to disruptions in supply chains and transportation, which can further hinder the military's ability to operate.

* The impact of climate change can be felt worldwide, and it could lead to increased refugee flows and political instability, which in turn could create conflict zones and destabilize other countries. This is especially concerning for countries in regions that are already vulnerable to conflict, such as the Middle East and Africa.