I study transnational political violence, international security, and climate politics with a focus on Latin America and the Global South. I am founder and full professor at the School of International Relations at FGV in Brazil. I earned my doctorate in International Relations from Oxford University in 2007 and in 2022-2023 I am visiting fellow at the Princeton Institute for International and Regional Studies, the Carnegie Endowment for International Peace, and Georgetown University's Americas Institute.