He previously served as an institute fellow at the Georgetown Climate Center, where he worked with states on Clean Power Plan implementation issues and on other policy strategies for cleaning their energy sectors. During law school, he was a law clerk at the Environmental Protection Agency’s Office of Enforcement and Compliance Assurance and the Department of Justice’s Environment and Natural Resources Division and its Environmental Defense Section. Before law school, he served as a senior legislative assistant for Congressman Adam Schiff, handling an issue portfolio that included the environment and energy policy. Macbeth graduated cum laude from Occidental College with a BA in Diplomacy and World Affairs (international relations) and received his JD from Georgetown University Law Center, where he was managing editor of the Georgetown Environmental Law Review and graduated cum laude.