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Super El Niño heat could cause about 857,000 extra deaths by March, tracker estimates

The University of Chicago's Climate Impact Lab launched an El Niño Heat Mortality Tracker estimating 484,500 heat deaths since June and about 372,900 more over six months. UK outlets differ on the headline total and on which countries rank among the top three.

2 outlets · 1L · 0C · 1R First reported Account updated
Image: Daily Mail
Image: The Independent

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The story, neutrally told

Mixed · 2The Climate Impact Lab at the University of Chicago has published an El Niño Heat Mortality Tracker that maps where heat linked to the current Super El Niño is expected to kill the most people. Mixed · 2Both outlets report that the tracker estimates 484,500 heat-related deaths already attributable to El Niño since June, plus roughly 370,000 more over the following six months. Mixed · 2The Daily Mail puts the combined total at 857,400 additional heat deaths between June 2026 and March 2027, while The Independent's headline rounds this to 870,000 and its text says nearly 900,000 over 10 months. The two figures in the Independent's text sum to about 857,000.

Mixed · 2Nigeria is forecast to have the highest toll, about 56,000 deaths over the six-month forecast period. The Independent adds a further 55,000 in India and about 29,000 in Indonesia. Mixed · 2The Daily Mail names Nigeria, India and Brazil as accounting for more than a third of projected deaths by March, whereas The Independent names China, Nigeria and India for that share. Right · 1Of deaths since June, the Daily Mail reports more than 100,000 in India, 85,400 in China, 38,500 in Sudan and more than 20,000 in Indonesia. It also reports an estimated 820 UK deaths this summer, and extra deaths in Italy (7,200), France (4,800), Germany (2,500) and Spain (2,300).

Mixed · 2The total is more than 350,000 higher than the researchers' estimate in September. They attribute the rise to August and September being much hotter than forecast; The Independent adds that August was the warmest on record and September the second warmest. Right · 1Michael Greenstone, a University of Chicago professor and co-founder of the Climate Impact Lab, said the tool lets decision-makers act before lives are lost. The researchers pointed to early warning systems, expanded healthcare access, water and cooling centres as proven responses. Left · 1The Independent notes experts say the record summer heat resulted from climate change rather than El Niño itself, whose strongest effects typically arrive from late autumn into winter. It also cites a Science study finding El Niños are more than 36 per cent stronger than before the industrial age, and a Lancet Countdown report of a record 710,000 heat deaths in 2023.

Right · 1The Daily Mail adds that the World Meteorological Organisation warned last week El Niño is becoming 'unprecedented in strength', and that experts say El Niño could bring a stormy UK winter.

Every sentence links to the reporting it rests on. The pill in front of each says where its sources sit: Left, Centre or Right when one side supplies at least half of them, Mixed when they are evenly split. The number is how many outlets it cites.

Left1 outlet

Framing
The Independent leads on the combined global toll as an 'alarming new prediction', with climate-change context.
Emphasis
Total deaths, country breakdown, the link between human-caused warming and stronger El Niños, and the Lancet heat-death report.
Leaves out or plays down
Gives no European or UK country figures or per-country deaths since June beyond the top forecasts.
Charged language
“alarming new prediction”
For example
“Super El Niño could lead to nearly 900,000 extra deaths worldwide over just 10 months, climate scientists have warned in an alarming new prediction.” — The Independent

Centre0 outlets

No centre outlet in our sources has covered this story yet.

Right1 outlet

Framing
The Daily Mail leads on an 'ominous map' and the forecast 370,000 at-risk lives, with a UK and European angle.
Emphasis
Country-by-country figures including UK and European deaths, plus a stormy UK winter.
Leaves out or plays down
Does not say experts attribute record summer heat to climate change rather than El Niño; the 857,400 total appears only in the body, not the headline.
Charged language
“Ominous map”“grim toll”“winter of chaos”
For example
“An ominous map shows where Super El Niño's deadly heat could kill the most people, as the phenomenon continues to ramp up in the Pacific Ocean.” — Daily Mail
“The grim toll is more than 350,000 higher than the researchers' initial estimate published only weeks ago.” — Daily Mail

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