In this PhD project, you will explore these questions from a spatial justice perspective. You will seek new theoretical and conceptual insights and develop disruptive tools and processes to support collective action in climate adaptation. You will explore critical approaches (intersectionality, decolonialism) to analyse factors that support/hinder collective action by looking at, e.g., social movements, community initiatives, and insurgent public participation practices. You will also explore the role of values in collective vision-making and imaginaries, contrasting Western and Indigenous perspectives. Theoretical, analytical and conceptual insights will be translated into tools and processes to support collective visioning and action towards just urban transitions. Given its socio-spatial-ecological scope, the Sponge City concept will provide the empirical focus for this study. Here, a Sponge City is approached as a city in balance across spatial scales: Balance between weather extremes (flooding/heavy rainfall and drought/heat); Balance between people and nature, and Balance between past, present, and future decisions.