Respiratory Justice offers a novel conceptualisation of breath and breathing as connecting key twenty-first century crises of climate, health, and racial injustice. By tracing breath’s rhythms and recurrences across an array of places, organisms, policies, and social movements, the project charts new connections in social and political theory through the corporeal experience of everyday life. This project moves beyond ideas of bodily sovereignty and legal autonomy (e.g. the human right to breathe) towards a novel conceptualisation of shared vulnerability, at once social, planetary and corporeal. By bringing together original historical material, scientific expertise, policy documents, and public discourse on breath and air, and through a blend of historical and contemporary cases, the project develops an embodied conceptualisation of pressing global social and environmental crises.