El Niño is officially here, bringing domino weather effects across the planet

illuminem summarises for you the essential news of the day, reviewed by our editorial team. Read the full piece on The Washington Post or enjoy below:

🗞️ Driving the news: The National Oceanic and Atmospheric Administration (NOAA) has officially declared El Niño in the central tropical Pacific
• This warming event is triggering a chain reaction in global atmospheric circulation, with forecasts suggesting a 63% chance of a very strong El Niño this November–January, potentially ranking among the largest events on record.

🔭 The context: El Niño, part of the El Niño Southern Oscillation (ENSO), arises when westerly winds push heated surface waters eastward across the equatorial Pacific
• This anomaly disrupts typical trade winds, reshapes the jet stream, and gradually alters weather worldwide
• Climate change is amplifying its effects: central Pacific waters are projected to be 0.5°C warmer than historical averages due to anthropogenic warming.

🌍 Why it matters for the planet: El Niño intensifies global climate extremes
• Drought is likely in southern Africa, Australia, India, and Oceania, while Southeast Asia could see increased rainfall and flooding
• The central and eastern Pacific may experience above-average hurricane activity, while the Atlantic may see suppressed storms
• Marine ecosystems are also affected: in Peru, anchovy fisheries have paused due to warmer surface waters reducing nutrient upwelling, threatening food security and local economies

⏭️ What’s next: The atmospheric domino effects will continue through at least the next northern winter, influencing agriculture, commerce, and disaster preparedness worldwide
• Monitoring and adaptation measures are critical in the coming months as water, food, and energy sectors brace for extreme variability

💬 One quote: “There is a 63% chance of a very strong El Niño during November-January … that would rank among the largest El Niño events in the historical record going back to 1950.” – NOAA Climate Prediction Center

📈 One stat: 7 out of 10 climate models predict this El Niño could surpass previous records set in 2015 and 1877, with Pacific surface warming potentially exceeding 2.7°C (4.9°F) above average

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