The climate crisis is a health crisis. Evidence linking heatwaves, floods, and droughts to disease outbreaks shows that climate change is placing lives at risk and straining health systems around the world. Opening Health Day at COP 30, this morning session brought UNFCCC Parties together for a high-level discussion on the endorsement of the Belém Health Action Plan for the Adaptation of the Health Sector to Climate Change, which was proposed by the Brazilian Ministry of Health. The event featured a roundtable on means of implementation with contributions from financing institutions and key development actors.