Lancet Countdown 2026: heat-related deaths reach a record as report calls climate change a health emergency
The 2026 report of the Lancet Countdown on health and climate change was published on 28 October 2026, ahead of the COP31 UN climate conference. It is the tenth annual report, produced by an international collaboration led by University College London (UCL) in strategic collaboration with the World Health Organization (WHO), and it tracks 54 indicators linking climate change and health.
