4. Discussion Throughout u3Green, the main advantages and challenges of working in teams with young citizen scientists become visible. Participation of young people introduces new ideas and asks experts to change their perspective. However, it requires comprehensive planning and particular pedagogical skills to keep young people engaged (e.g., keep them interested and motivated) Literatur Fors, H., Hagemann, F.A., Sang, Å. O. & Randrup, T. B. (2021). Striving for inclusion. A systematic review of long-term participation in strategic management of urban green spaces. Frontiers in Sustainable Cities 3:1-27. https://doi.org/10.3389/frsc.2021.572423 Goderbauer, E. (2023). Jugendbeteiligung in der Stadtentwicklung. Ein Blick aus der Stadtforschung. Geographische Rundschau 2023(4):24-29. Vogler, R., Hennig, S., & Albrecht, F. (2023). Urban Green for Child-and Youth-Friendly Cities. GI_Forum 2023(1):118-139. https://doi.org/10.1553/giscience2023_01_s118 Contact u3Green-Team (Tim Schötz, Sabine Hennig, Robert Vogler) Department of Geoinformatics – Z_GIS University of Salzburg tim.schoetz@plus.ac.at 1. Objectives u3Green pursues three objectives: 1. gaining general knowledge about the importance and use of urban green by children and the youth 2. developing a web-based, child- and youth-centred application for collecting and reporting information on urban green spaces (u3Green-app) 3. communication of the findings (i.e., analyze results of the data contributed using the u3Green-app) via suitable geo-visualization products 2. Methods, tools, workflow Based on a basic knowledge, a survey application is created which is then used to survey the locations and characteristics of urban green spaces (Fig. 1). The collected data is then evaluated and communicated. Geomedia products from Esri (e.g., ArcGIS Online, Survey123, Insights, StoryMaps) are used to record, evaluate and communicate the results. Young people, i.e., school students, are involved in all phases of the project through various participation formats. These include school workshops, short and long-term internships. 5. Conclusion, outlook The collected data is analyzed using geomedia (e.g., StoryMaps, ArcGIS Insights) and then communicated to the city in a publicly effective way. u3Green is therefore intended to improve the consideration and participation of young people in urban green planning processes and raise social awareness. 3. Results The data collected via the u3Green-app represent key results focusing on children and young people. An initial analysis of the data shows the following (Fig. 2): 1) Going for a walk is a core activity for the use of urban green spaces; 2) Free Wi-Fi, cleanliness and security, e.g., a ban on alcohol and other drugs, were highlighted as important characteristics of urban green spaces; 3) In addition, the u3Green project provides important insights into the participation of young people in urban planning processes for urban green spaces. u3Green Participation and citizen science with young people u3Green is funded by the Federal Ministry of Education, Science and Research in the Sparkling Science 2.0 program. Going for a walk Wi-Fi Cleanliness Security Fig. 2: Selected results of the u3Green survey The provision of urban green spaces is becoming increasingly important due to the declining living conditions in cities. However, the demands of young people and adults often vary considerably and are not well understood. Furthermore, there are deficits in the participation of children and young people in urban planning, although their involvement in the relevant processes is becoming increasingly important. One of the reasons for this is the specific involvement of young people in citizen science initiatives. The u3Green project addresses these challenges by following the citizen science co- creation approach. Fig. 1: u3Green workflow 1. Understand 2. Develop 4. Analyze 5. Communicate workshops short-term internships long-term internships Basic know