Climate Threat and the Expected Impact: Climate change is likely to increase population movements from Mexico, Central America, South America, and the Caribbean and impact neighboring countries. Increases in human migration may require more resources and operational capacity at the U.S. border to facilitate the application of immigration law, including the law governing claims for humanitarian protection. Additionally, climate change may impact patterns of disease and infection among humans, animals, and plants putting members of the DHS workforce at increased risk of illness. As with Vulnerability 2, national security risks are Vulnerability 2: Resources to Assess Mission Essential Functions and Critical Infrastructure The Department must determine a standard financial method for determining cost impacts. The risk of climate change will be incorporated into the Department's existing risk management and continuity processes.