Dr. Aude Chesnais has worked for over 10 years on sustainable innovation in Lakota communities in South Dakota, US. She uses participatory and decolonial methods to design and lead locally useful research that brings visibility to Lakota sustainable initiatives and their cultural specificities. Her research interests span across issues of identity, environmental justice and political ecology. She taught sociology for 5 years at Colorado State University. While a visiting fellow at SoGES, Dr. Chesnais will be leading a research project aiming at determining a national food sovereignty index on tribal land. From existing data, she will be discussing a specific theoretical framework for indigenous food sovereignty to serve as a base to establish a usable index system that will help tribes maximize their sustainable agricultural production.