<h1>Climate justice framed as a moral duty guiding BRICS priorities toward resilience, cooperation, and global health preparedness.</h1> Climate justice is characterised as a moral duty guiding India's BRICS presidency priorities toward resilience, innovation, cooperation and sustainability. The approach elevates environmental responsibility within multilateral policy, emphasizes the connection between planetary and public health, and advocates preparedness for transnational biological threats while promoting equitable capacity-building and confidence among developing nations.