Between 2006 and 2011, Mr. Unger was the Senior Advisor of the TZ (GIZ) component of the community-based rural water supply project ProAir in East Nusa Tenggara, Indonesia. He is currently chief technical advisor of KfW for the community-based Forest Programme III in Sulawesi, Indonesia. He holds a Master of Science degree in Geography, Sociology, and Environmental Economy and he is a trained intercultural mediator.