Hadden's research interests include international relations, environmental politics, and social movements. Her book Networks in Contention: The Divisive Politics of Global Climate Change (2015) explores the evolution and impact of the international climate change movement. The research for this book was supported by a Fulbright Fellowship, as well as grants from the National Socio-Environmental Synthesis Center, the Cornell Center for a Sustainable Future, and the European Union Studies Association. She is a regular participant in the UN climate process and holds an International Affairs Fellowship from the Council on Foreign Relations for the 2015-2016 academic year. Hadden holds a B.A. from Smith College and Ph.D. from Cornell University.