We are facing a climate and environmental crisis and both corporations and governments are often responding with capital-intensive, urban-focused, highly centralized and undemocratic solutions. Solutions, in other words, that reproduce the structural factors that led to the current crises. At the same time, however, communities and social movements around the world are advocating for genuinely transformative solutions that would address the roots of the current crisis and contribute to system change. Communities are fighting for food sovereignty; energy democracy and sovereignty; democratic control of resources; human-rights centred policies, based on a re-grounded and revitalized notion of human rights that recognizes the concept’s relevance to a wide range of social and resource struggles; and ultimately for a transformative vision of a just transition to a just and sustainable society. These alternatives are more than proposals: local communities around the world are already putting them into practice and developing systems, communities, networks, and movements that prefigure this kind of transition by modelling alternative understandings of our relationships to nature, and each other.