Ann Hironaka is Professor of Sociology at the University of California, Irvine. She studies war, politics, and the environment from a global perspective. Her book, Neverending Wars (2005), examined the intractable civil wars of the contemporary era and the role of the international community in perpetuating these conflicts. Her recent book, Greening the Globe (Cambridge, 2014), examined the historical emergence of the global environmental regime and its impact on national policy and environmental practices around the world.