Through a critical and interdisciplinary approach, the study seeks to answer: is it possible to speak of climate transitional justice? To what extent can international legal tools be adapted to address these profound impacts caused by the environmental crisis on vulnerable populations? On initial hypothesis, drawing on international legal instruments and examples from the Global South, it suggests that transitional justice principles can help build more just climate responses — especially for communities experiencing forced migration, ecological grief, and lack of state protection. Ultimately, the paper argues for a shift in how we understand justice in the climate crisis: not only as prevention and adaptation, but also as recognition, responsibility, and repair in cases still possible. The research adopts a qualitative, theoretical, and interdisciplinary methodology, grounded in the analysis of international legal instruments, academic literature, and reports from international organizations. The study also draws on case studies and narratives from the Global South, where the impacts of climate change are already generating demands for justice and recognition.