Colombina Schaeffer is a sociologist from the Catholic University of Chile (PUC). She is interested in exploring different types of environmental controversies, focusing on the role played by concerned citizens and groups, and in issues where questions of science and politics cannot be held apart. Her dissertation explored the controversy surrounding the construction of a mega hydroelectric project (HidroAysen) in Chilean Patagonia (Aysen Region). It focused on the Patagonia Without Dams (Patagonia Sin Represas) campaign, the biggest environmental campaign ever organised in Chile. The thesis drew on recent contestation politics literature, as well as on the insights of science and technology studies. Her research interests include political ecology, social movements and Latin American politics. She worked with the Chilean based NGO Programa Chile Sustentable, where she co-edited the book “Conflicts over Water in Chile: Between Human Rights and Market Rules”. She is a founding member and co-director of VerDeseo.