Viganda Varabuntoonvit is an assistant professor at the Chemical Engineering Department, Faculty of Engineering, Kasetsart University, Thailand. Her areas of specialization and research include life cycle assessment, energy efficiency, energy and carbon intensity, energy management system, carbon footprint, water footprint, and SDGs. Viganda Varabuntoonvit is an assistant professor at the Chemical Engineering Department, Faculty of Engineering, Kasetsart University, Thailand. Her areas of specialization and research include life cycle assessment, energy efficiency, energy and carbon intensity, energy management system, carbon footprint, water footprint, and SDGs.