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El Niño Fuels Record Heat: Is 2026 the Hottest Year?
5 Nov
Summary
- El Niño's influence on global temperatures is expected to peak in late 2026.
- Ocean heat trapped by fossil fuels is the primary driver of rising temperatures.
- The current El Niño is the strongest since record-keeping began in 1950.
Berkeley Earth forecasts a 96% probability that 2026 will be the warmest year recorded, surpassing previous records. This projection has significantly increased as a powerful El Niño develops. This El Niño, characterized by warming Pacific Ocean temperatures, is the strongest observed since record-keeping began in 1950.
While El Niño contributes to temporary global temperature increases by releasing stored ocean heat, the persistent warming trend is primarily attributed to climate change driven by fossil fuel consumption. Scientists explain that as oceans absorb excess heat from greenhouse gas emissions over decades, their capacity to trap carbon dioxide diminishes, creating a feedback loop that accelerates atmospheric warming.
Models indicate that El Niño's effects on global temperatures typically appear about three months after its peak. Although El Niño will eventually dissipate, the underlying oceanic warming caused by human activity will persist. The U.S. National Centers for Environmental Information offers a slightly different forecast, predicting an 86.9% chance of 2026 being the second-warmest year.
However, scientists anticipate that the full impact of this strong El Niño will be most evident in 2027. Projections suggest that 2027 has a 96% chance of being the warmest year on record, potentially reaching 1.7°C above pre-industrial levels.
