Erwin is a senior subject matter expert with more than 25 years of experience at the nexus of national security and the environment. He advises LMI’s customers on the application of advanced analytic methods to support sustainability and climate risk assessment, mitigation, and resilience. He specializes in geospatial analytics and composite indicator system evaluation and development. Prior to LMI, he served as a research scientist for ISciences, LLC, supporting an Intelligence Community customer. In this role, he assessed the national security implications of climate change, including water scarcity analysis and modeling, extreme weather trend analysis, vulnerability and risk assessment, and technologies for monitoring treaty compliance. Erwin is an adjunct professor of energy, resources, and the environment at Johns Hopkins University’s Paul H. Nitze School of Advanced International Studies and an environmental security fellow at the Virginia Tech Center for Leadership in Global Sustainability. He received his bachelor’s (geography), master’s (geographic and cartographic sciences), and doctorate (environmental science and public policy) degrees from George Mason University.