Powerful El Nino could cause more than 450,000 deaths, scientists say

Read the original at Al Jazeera ↗
Al Jazeera · collected 2026-09-23 · by Al Jazeera Staff

Quick Summary

Scientists from the University of Chicago’s Climate Impact Lab project that over 450,000 additional deaths may occur globally due to heat linked to the strong El Nino event lasting until February 2027. Developing nations and Africa’s Sahel region are expected to be particularly affected, with Nigeria seeing the highest projected toll at around 31,400 deaths. Michael Greenstone, a cofounder of the lab, emphasizes that areas already experiencing high temperatures will face more significant dangers from the additional heat caused by El Nino, underscoring the critical role of access to resources like air conditioning and healthcare in mitigating risks.
Written locally by qwen2.5:14b on 2026-09-23, using this article's own text rather than the other coverage of the same event (that is the story summary below).

AI analysis runs on qwen2.5:14b, locally

Story summary

This year’s powerful El Niño could lead to nearly half a million more deaths worldwide by the end of February 2027, according to a report from the University of Chicago's Climate Impact Lab. The study projects up to 451,000 additional heat-related fatalities between June and February compared to normal years. Poorer countries and regions like the Sahel in Africa are expected to suffer most, with about 66,800 additional deaths there alone. India is also projected to see over 15,000 excess deaths by February 2027, though these numbers might be less convincing as it won't experience its hottest summer period yet. The report highlights that extra heat has a more severe impact in already hot and poor regions, emphasizing the need for protective measures like better heat forecasts and cooling centers to mitigate such impacts.

Written for “El Nino Death Toll Warning” on 2026-10-05, grounded in this article and the 5 other(s) covering the same event.

Signals How these are calculated →

Claims extracted
15
claim-shaped sentences
Uncertain
20%
3 of 15 hedged
Leaning
Centre
of the writing, not the subject · beta estimate
Correction & hedging signals
60.3
corrections and hedging in what we collected; not a measure of accuracy
Outlets on this story
6
Environment
Narrative spread
1
articles carrying this framing
Analyzed 2026-09-23 · how these are computed

Story

📰 El Nino Death Toll Warning
Environment · 6 article(s) covering the same event. See how they differ ↓

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Compared with similar articles

This article reads centre and hedges 20% of its claims. Each row says how that neighbour differs.
Al Jazeera · 0.93 cosine similarity
⚖️ leaning not scored 🔴 23% hedged 12 of 52 📰 publisher trust 60
“Both articles report on the same research report published by the University of Chicago’s Climate Impact Lab, warning about the projected number of deaths due to the strong El Nino event in the coming months.”
Mother Jones · 0.91 cosine similarity
⚖️ leaning not scored 🔴 14% hedged 4 of 29 📰 publisher trust 95
“Both articles report on the same specific prediction of over 450,000 additional heat-related deaths due to a strong El Nino event from September 2026 to February 2027.”
CBC News · 0.93 cosine similarity
⚖️ Leans left further left than this 🔴 28% hedged 7 of 25 📰 publisher trust 60
“Both articles report on the same research report released by the University of Chicago's Climate Impact Lab, predicting over 450,000 heat-related deaths due to a strong El Nino event from June to February 2027.”
Toronto Star · 0.92 cosine similarity
⚖️ leaning not scored 🔴 31% hedged 8 of 26 📰 publisher trust 63
“Both articles report on the same research report released by the University of Chicago's Climate Impact Lab predicting nearly half a million additional heat-related deaths worldwide due to the powerful El Nino event between June and February 2027.”
The Hindu · 0.91 cosine similarity
⚖️ leaning not scored 🔴 27% hedged 7 of 26 📰 publisher trust 60
“Both articles report on the same research report released by the University of Chicago's Climate Impact Lab on September 23, 2026, predicting an increase in heat-related deaths due to El Niño.”
TIME
⚖️ Leans left further left than this 🔴 8% hedged 3 of 37 📰 publisher trust 60
“The articles discuss different aspects of extreme heat and climate change impacts, but do not describe the same specific incident or occurrence.”
The Independent
⚖️ leaning not scored 🔴 20% hedged 8 of 40 📰 publisher trust 59
“While both articles discuss the impact of a severe El Nino, Article A focuses on the threat to food security and extreme weather in Asia, while Article B specifically reports on projected heat-related deaths globally over the next six months.”
New York Post
⚖️ leaning not scored 🔴 17% hedged 2 of 12 📰 publisher trust 64
“The articles discuss different aspects and outcomes related to the El Niño phenomenon; one focuses on temperature records, while the other forecasts potential deaths due to heat.”
Toronto Star
⚖️ leaning not scored 🔴 20% hedged 8 of 40 📰 publisher trust 63
“The articles discuss severe impacts of El Nino but focus on different aspects (drought and food prices vs. heat-related deaths), indicating they cover related topics but not the exact same specific event.”

Publisher

Al Jazeera · 2140 article(s) · 2 correction(s) detected
Running correction rate · 2 correction(s)
2026-10-03
Tennessee prisons official resigns after Christa Pike’s failed US execution
2026-09-30
Indonesia suspends five officials over luxury apartments for inmates

Who wrote this

Al Jazeera Staff
444 article(s) here · 1 carrying a prediction
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Wire or desk byline, not an individual reporter.
Also by Al Jazeera Staff
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 444 articles by Al Jazeera Staff →

Topics

3US Climate Impact Lab El Nino India the University of Chicago’s

Subjects

India GPE · 2× 3US GPE · 1× Climate Impact Lab ORG · 1× Indonesia GPE · 1× Nigeria GPE · 1× Philippines GPE · 1× Sudan GPE · 1× Thailand GPE · 1× Vietnam GPE · 1× the University of Chicago’s ORG · 1×

Narrative

‘Much more dangerous’ Michael Greenstone, cofounder of the lab and co-author of the study, said the findings show heat poses the greatest threat where temperatures are already high and incomes relatively low. “If you’re already in a hot place, the extra couple of degrees are going to be much more dangerous,” he said.
framing: assertive · carried by 1 article(s) · first seen 2026-09-23
🔮 More than 450,000 people are projected to die from additional heat due to the unusually strong El Nino event over the next six months, according to a research report.
2026-09-23 · Al Jazeera
Powerful El Nino could cause more than 450,000 deaths, scientists say · assertive framing

Claims (15 extracted, 3 hedged)

More than 450,000 people are projected to die from additional heat due to the unusually strong El Nino event over the next six months, according to a research report. uncertain
people → project → report
The projection, published on Wednesday by the University of Chicago’s Climate Impact Lab, runs to February 2027 and compares estimates of heat-related deaths that could be attributed to El Nino with the level expected in a typical year. Recommended Stories list of 3 items- list 1 of 3El Nino: A phenomenon supercharged by climate change - list 2 of 3US records hottest summer in 132 years - list 3 of 3El Nino reaches super status: Where will it bring rain, drought and heat? Researchers estimate that global land temperatures could climb by about 1.2 degrees Celsius (2.1 degrees Fahrenheit), with extremely hot days 44 percent more frequent than in an average year. uncertain
days → publish → year
Developing nations and Africa’s Sahel region are expected to be hit disproportionately hard. asserted
nations → develop → ?
The report projected about 66,800 additional deaths across the Sahel, with Nigeria having the highest projected toll of any single country at 31,400, ahead of Indonesia at 19,300 and Sudan at 17,600. asserted
Nigeria → project → 17,600
Elsewhere, the Philippines, Vietnam, Thailand and Cambodia are forecast to see a combined 19,400 extra deaths, with 15,800 projected in India and 13,300 in Brazil. asserted
Philippines → forecast → Brazil
‘Much more dangerous’ Michael Greenstone, cofounder of the lab and co-author of the study, said the findings show heat poses the greatest threat where temperatures are already high and incomes relatively low. “If you’re already in a hot place, the extra couple of degrees are going to be much more dangerous,” he said. asserted
he → say → degrees
Richer places tend to have better access to air conditioning, steady water supplies and health services, he added. asserted
he → tend → conditioning
Greenstone said the heat risk was likely to outlast the El Nino itself, with repercussions stretching into next summer. asserted
repercussions → say → summer
Abhiyant Tiwari, who specialises in heat at NRDC India, told The Associated Press news agency that the projections should spur action. asserted
projections → specialise → action
Funding and delivery remain weak points, he said, even in India, which has sound plans on paper. asserted
which → remain → paper
“The real measure of our preparedness is not how many heat warnings we issue, but how effectively we protect people and reduce preventable deaths,” he said. asserted
he → issue → deaths
This year’s El Nino began developing in June and is expected to be one of the strongest ever. asserted
Nino → develop → strongest
Experts say the natural weather pattern, which occurs cyclically, is being “supercharged” by climate change. asserted
which → say → change
In early September, the United Nations’ weather agency reported a 100 percent likelihood that El Nino will continue through February 2027. asserted
Nino → report → February
But researchers say its dangers could linger into mid-2027. uncertain
dangers → say → mid-2027
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