This innovative book provides a comprehensive articulation and analysis of the failure of existing climate, environmental and biodiversity regimes and laws to respond to the global polycrisis. Rosemary Lyster, Danielle Celermajer and Phillipa McCormack propose a radical relational transformation in the form of Multispecies Climate Justice, including procedural justice. Chapters systematically link responsibility for the destruction of Earth others to the rise of neoliberalism and the failure of dominant systems of law to address the problems at this structural level. The authors build on Indigenous knowledge, relational ontologies and evolutionary developmental biology to articulate a novel, critical methodology for explicitly recognising Earth others in statutory re-drafting and the reimagining of climate and biodiversity laws. They critique the dominant legal approaches, presenting Multispecies Climate Justice as an alternative metanarrative for law and a transformative way forward. Multispecies Climate Justice, Disasters and Responsibility is an essential resource for academics and students in law and development, climate and environmental law, human rights and climate change as well as politics and public policy. It is also an informative read for activists, practitioners, professionals and policymakers involved in climate justice.