Dr. Harald Mattenberger studied environmental sciences in Germany, was a graduate student in the USA and earned his PhD in natural sciences in Switzerland. As a scientist in research institutes and later on head of research and development in a small stock company he focused on developing novel recycling processes. He was lecturer, researcher and project manager at universities of applied sciences in Austria, his focus being on topics in the sectors of waste management, renewable energies and science communication. Currently, he teaches both at a regular school and at university level. In addition, he develops projects with partners from academia and science communication in the area of education for sustainable development.