How a monster ocean heatwave could fuel a super El Niño

The likelihood of an El Niño event emerging by July 2026 has risen to over 80%, with projections exceeding 90% by year-end, potentially making 2026 one of the hottest years on record. Concurrently, a massive 9,000-mile marine heatwave has formed in the North Pacific since late 2025, stretching from Papua New Guinea to the California coast, where temperatures are 2–3°C above normal. Scientists fear these extreme warming events may fuel a 'super' or 'Godzilla' El Niño, prolonging marine heatwaves and disrupting ecosystems, fisheries, and global climate patterns well into 2027. Such events have historically altered marine life, triggered harmful algal blooms, and caused mass seabird deaths, as seen with past Pacific 'Blob' heatwaves in 2013–2015 and 2019–2020. El Niño occurs when equatorial Pacific sea surface temperatures exceed 0.5°C above average for three months, a cycle influenced by climate change, which is increasing their frequency and intensity. The current North Pacific heatwave may reduce winds, further triggering El Niño conditions, while the equatorial warming could amplify the North Pacific heatwave’s duration. This unprecedented convergence of warm events across the Pacific poses serious risks to wildlife, human communities, and Earth’s climate. The interplay between the marine heatwave and El Niño could intensify extreme weather, disrupt food webs, and accelerate global warming impacts beyond 2026. Research indicates anthropogenic climate change is altering El Niño patterns, making such extreme events more likely. The current situation underscores the need for global preparedness as these interconnected warming phenomena unfold.