After the succesfull previous conferences in Berlin (2013) and in Shanghai (2016) the 3rd World Conference of the Society for Urban Ecology 2020 (SURE2020) will take place in Poznań on 6 to 8 July 2020. The conference programme covers a wide range of topics related to urban ecological aspects and social components interdependencies in cities. The leading concept of the SURE2020 conference in Poznań is to provide the welcoming forum for scientists, practitioners, policy-makers and scholars to present their research and discuss the ideas, concepts, experiences and different points of view.