In this webinar at the STEPS Centre in July 2020, Sango Mahanty (Crawford School of Public Policy, ANU) explains some key insights from the “Rupture” project, on how mega infrastructure projects such as hydropower are dramatically transforming nature and society in our region. The talk develops four analytical themes that have broader relevance in understanding nature-society transformation: interactivity between transformative processes; cross-scale interactions; temporality, and agency. It illustrates these with examples from the field, and explains how a rupture lens builds upon existing perspectives on nature-society transformation.