In this episode, we look at the issue of sustainable education based on the experiences of PASSION team members from Portugal and Sweden. Should we teach sustainability in preschools (or is it too early)? Is it possible to teach about sustainability during online classes? Why is it worth using case-based teaching? Is people’s connectedness with nature similar in Portugal and Sweden? Prof. Clara Vasconcelos (Portugal) suggests that if we start teaching sustainability children, they will bring smart and useful ideas to their families. Grzegorz Mikusiński, Ph.D. (Sweden), adds that we can learn a lot from children about sustainability. Prof. Clara Vasconcelos is a Professor at the Department of Geosciences, Environment and Spatial Landing in the Faculty of Sciences of Porto University and a team member of the PASSION project. Grzegorz Mikusiński, Ph.D., is a lecturer and researcher from the Department of Ecology at the Swedish University of Agricultural Sciences and a team member of the PASSION project. This podcast was produced in Collegium Civitas as part of the PASSION project: “Partnership for Sustainable Development and Social Innovation” and was financed by the Polish National Agency for Academic Exchange as part of the “Academic International Partnerships” Program, based on Decision No. PPI/APM/2019/1/00096/DEC/01.