There are three main aims to this youth exchange: We want to create a network of young people from Frankfurt and Lyon who are enthusiastic about resilience and the ecological transition in their city, and thus boost intercultural exchange within the twinning of the two European cities. We want to help participants identify and understand the social and ecological challenges facing a municipality, and transfer this knowledge to a European context. To do this, we will enable young people to express these concerns at local and European level, by exchanging views with political representatives. It is important for us that the young people identify the commonalities between the ecological challenges of two major European cities, that they develop concrete courses of action for sustainable living in their own cities, and that they learn how to communicate their concerns to local and European decision-makers.