Super El Nino Could Cause 450,000 Heat Deaths by February 2027
Scientists at the University of Chicago's Climate Impact Lab released a report warning that this year's Super El Nino could lead to approximately 451,000 additional heat-related deaths between June 2026 and February 2027, compared to a typical year. The extreme weather pattern, which is developing on a planet already warmed by climate change, is expected to raise global temperatures 1.2 degrees Celsius above normal, with extremely hot days occurring 44 percent more frequently than average. Developing nations, particularly in Africa's Sahel region, are projected to bear the heaviest burden. Nigeria could see 31,400 excess deaths, Indonesia 19,300, and Sudan 17,600. The United States is also in the top twenty affected countries with a projected 3,500 deaths. The report urges immediate action through heat warnings, cooling centers, hydration stations, and protections for outdoor workers. While the study hasn't been peer-reviewed yet, it uses peer-reviewed methodology and was released early because scientists said policymakers need time to act before the peak of this climate event.
Key facts
- Climate Impact Lab projects 451,000 additional heat-related deaths from June 2026 to February 2027, compared to a typical year.
- Global land temperatures are expected to climb 1.2 degrees Celsius above normal during this period.
- Nigeria is projected to face the most heat deaths with 31,400, followed by Indonesia with 19,300 and Sudan with 17,600.
- Extremely hot days are expected to be 44 percent more frequent than in an average year.
- The Super El Nino is forecast to be the strongest since comparable records began four decades ago, with potential economic losses estimated between $986 billion and $17.6 trillion over the following years.
- The report uses peer-reviewed methodology but has not yet undergone full peer review; researchers released it early due to El Nino's rapid strengthening and the need for policy action.
- Health risks include direct heat deaths plus impacts from droughts, wildfires, flooding, and increased vector-borne diseases like malaria and dengue.
How different outlets framed it
Left-leaning coverage: Left-leaning outlets and climate scientists emphasize the role of human-caused climate change in amplifying the natural El Nino phenomenon. They stress that this event is a preview of a hotter future if fossil fuel emissions continue, with researchers describing it as a postcard from the future showing temperatures the planet will experience regularly within decades. The framing links this crisis directly to the need for rapid global action to reduce greenhouse gas emissions.
Right-leaning coverage: Right-leaning and business-focused outlets emphasize the economic implications, including market disruptions, inflation risks, and commodity price volatility. Coverage focuses on the practical business and supply chain challenges, such as crop disruptions and energy market impacts, while some sources note uncertainties in modeling and projections. These outlets tend to frame El Nino as primarily an economic challenge requiring market adaptation rather than emphasizing climate change.
Limits of this briefing
Some researchers note the death projections represent modeling exercises based on historical temperature-mortality relationships and may be subjective, particularly regarding regional distributions. The report focuses only on heat-related deaths and does not include the full toll from associated impacts like droughts, wildfires, and disease outbreaks, which could significantly increase the overall death toll.
Sources
- Al Jazeera: Scientists warn super El Nino could cause 450,000 deaths: Should we worry? Centre
- CNN: Super El Niño could cause 450000 heat deaths by February Centre
- NBC News: This year's El Nino-driven heat could cause nearly half a million more deaths, group says Centre
- Inside Climate News: Super El Niño to Cause 451,000 Heat Deaths Left
- The Hill: Super-strong El Niño could lead to 450K deaths. Map shows the states hit hardest Centre