Clemens Findeisen has been working in the field of sustainability, waste management and renewable energy for more than fifteen years. His career took him from industrial companies, consulting companies, NGOs to independent consulting activities. He spent four years at the ALIARSE foundation in Costa Rica, managing waste and renewable energy projects. Since 2013 he has been working on behalf of the Federal Ministry for Economic Cooperation and Development (BMZ) at the German Biogas Association “Fachverband Biogas e.V.” and promotes the use of biogas-technology in developing and emerging countries. He held trainings and carried out projects in the area of biogas in countries like Costa Rica, Brazil, Mexico, Turkey, Thailand, Malaysia, India, Indonesia and Kenya.