The El Niño currently building in the equatorial Pacific has reached 3.05°C above the 1991-2020 average — eclipsing the previous record of 3.02°C set in late November 2015 — and it is months away from its expected peak. Fourteen climate models averaged by scientist Zeke Hausfather project a peak of 4.0°C in November-December, a level Hausfather calls "mind-blowing" and others describe as "Godzilla-level." Any rise above 0.5°C qualifies as an El Niño; above 2.0°C is officially "very strong." This event is operating in a different category entirely. The ONI (Nino3.4) metric — the preferred measure among meteorologists because it uses a 30-year rolling average that accounts for background warming — sits one-hundredth of a degree below the 2015 record. Both measures draw on NOAA data. Coral records, tree rings, and historical documents suggest no El Niño has reached this level in the past 1,000 years. What makes this event structurally dangerous is not just its magnitude but its context. It is unfolding on top of a baseline that has already shifted upward from decades of fossil fuel emissions. Prof Friederike Otto at Imperial College London frames it precisely: a massive redistribution of energy within the climate system, landing on an already-warmer planet. The result is that extremes — heat, drought, flood — will exceed anything previously experienced in many regions. The damage ledger is already running. Indonesia's record wildfires have caused fatal air pollution levels, with an estimated 1,700 deaths in August alone. India's monsoon rains have been curtailed. Drought in Central America is destroying crops and slowing Panama Canal trade. The World Food Programme projects roughly 50 million people pushed into acute hunger. Peru and Chile are suffering intense rains and flooding; access to Machu Picchu is disrupted. The economic stakes are enormous. The 1997-98 super El Niño caused an estimated $5.7 trillion in global losses — dwarfing the $2 trillion GDP reduction from the 2008 financial crisis. The current event has already surpassed that El Niño in intensity, months before its peak. Prof Bill McGuire calls it potentially "one of the biggest global weather upheavals in a millennium." The southern hemisphere summer is expected to bring heightened wildfire risk and drought to Australia and southern Africa, while Pacific typhoons intensify. Atlantic hurricanes, typically suppressed by El Niño, have been so quiet that none has occurred this year — an anomaly. Scientists worry that the multiplying effect of background warming could shift traditional El Niño impact patterns, undermining the preparedness frameworks countries rely on. The UN World Meteorological Organization has launched what it calls the largest mobilization in its 50-year history to support national weather services. Secretary-General António Guterres says the planet is "in uncharted waters." Research now shows global heating is intensifying El Niño cycles, which in turn intensify climate impacts — a feedback loop with no off-switch as long as fossil fuels continue burning. The system is not just warming; it is amplifying its own instability.
