The 2012 Tanzania Model United Nations (TMUN) was held from March 31st to April 2nd in Dodoma, Tanzania. Organized by the Youth of the United Nations Association (YUNA), the conference brought together youth from across Tanzania to discuss issues related to the theme "Rio+20 and Sustainable Development: Advancing Human Progress in Harmony with Nature". Over the course of the conference, youth participants engaged in committee sessions and General Assembly debates to simulate the United Nations. The conference highlighted both the opportunities and challenges of achieving sustainable development.