Ann Hironaka studies environmental sociology, politics, and war from a global perspective. Her book, Greening the Globe: World Society and Environmental Change (Cambridge University Press, 2014) examines the historical emergence of the global environmental regime and its impact on national policy and environmental practices around the world. Her research on environmentalism has also appeared in the American Sociological Review, International Organization, and Social Forces.
Professor Hironaka also seeks to address the issue of war from a macro-historical sociological perspective. Her first book, Neverending Wars (Harvard University Press, 2005) examined the intractable civil wars of the contemporary era and the role of the international community in perpetuating these conflicts.