Sarah Milne studies natural resource struggles and environmental intervention, particularly when it comes to community-based conservation; resource rights initiatives; and market mechanisms for conservation like Payments for Environmental Services (PES) and Reducing Emissions from forest Degradation and Deforestation (REDD+). Most of her research is focused on Cambodia, where she has been active as a conservationist, ethnographer, and advocate since 2002. Her current project (ARC Discovery) focuses on the concept of rupture in cases of dramatic environmental change.