Gwendolyn Hallsmith has worked on sustainable development in many different capacities, including positions such as Deputy Secretary of the Vermont Agency of Natural Resources, the Town Manager of Randolph, Vermont, as the Regional Planning Director in Franklin County, Massachusetts, and as a Senior Planner for the Massachusetts Office of Energy Resources. She has a Master's degree in Public Policy from Brown University, and has had over twenty years of experience working on environmental issues. She is currently Campaign Coordinator for the Vermont Earth Charter and a Pastor with the United Federated Church in Williamstown.