
COP30 is a chance for Brazil to lead on climate action and defend multilateralism on a global stage
BMJ 2025; 391 doi: https://doi.org/10.1136/bmj.r2100 (Published 06 November 2025)Cite this as: BMJ 2025;391:r2100 Danielle Hanna Rached, professor – Global Health and Sustainability Program, School of Public Health, University of São Paulo, São






