The “5th World Symposium on Sustainable Development at Universities” (WSSD-U-2020) will focus on, Universities, Sustainability and Society: Supporting the Implementation of the Sustainable Development Goals”, and will contribute to the further development of this fast-growing field. Organizers are looking for practical experiences on education, research and extension, the so-called 3rd mission, whereby universities outreach to society as a whole (e.g. to local communities, organizations, industry and other groups) with the aim of documenting such experiences and making them available to a wide audience.