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# Global heat-related mortality rose by 29% in very strong El Niño years
- URL: https://www.coios.me/global-heat-related-mortality-rose-by-29-in-very-strong-el/
- Published: 2026-11-08T13:22:44.000Z
- Updated: 2026-11-08T14:06:44.000Z
- Description: Estimated heat-related mortality rose 29% in very strong El Niño years, most in low- and medium-Human Development Index regions.
- Author: Daniel Ryan
- Tags: Tomorrow's world, A changing climate, World, #peer-reviewed, #new, #item, #source-2026-11, #score-82

The study examined global heat-related mortality during El Niño years. It covered populations worldwide, grouped into regions by Human Development Index. Epidemiological methods were used to estimate heat-related deaths in very strong El Niño years. Heat-related mortality was estimated to increase by 29% in these years. The greatest burdens fell in low- and medium-Human Development Index regions. The results are estimates, which the authors say only suggest this pattern.

*Why it is interesting: It estimates how a recurring climate pattern relates to heat deaths worldwide. The estimated burden is greatest in low- and medium-Human Development Index regions.*

Source

[Nature Medicine, 4 November 2026](https://www.nature.com/articles/s41591-026-04793-w?ref=coios.me)

Type

Peer-reviewed article

Design

Global epidemiological modelling of temperature-mortality association by ENSO phase; sample size, locations and years not stated in the available abstract

Verdict

New finding

Driver

[A changing climate](https://www.coios.me/d-climate/)