EL NIÑO AND EFFECT ON GEOPOLITICS | HOW BIG CHANGE IS LOADING
EL NIÑO AND GEOPOLITICS
A Pacific Ocean cycle with global political consequences
A vast pool of unusually warm water building beneath the surface of the equatorial Pacific is set to trigger El Niño through the second half of 2026, threatening droughts, floods, heatwaves and a possible large crop failure. NOAA, WMO and the IRI now rate its emergence as highly likely, and the consequences reach well beyond the weather — into food security, water disputes, energy stress, migration and strategic commodities.
Overview
El Niño is arriving into a world that is already under strain on several fronts at once. Escalating geopolitical conflicts, record heat and climate extremes, global economic disruption, and social unrest and resource scarcity are all building in parallel with El Niño's own weather anomalies — meaning its droughts, floods and crop losses will land on top of, and interact with, stresses that already exist.
The blob beneath the surface
Lurking below the surface in the equatorial Pacific is a huge blob of above-average ocean temperatures recorded recently. When that enormous concentration of “bath water” reaches the surface over the coming weeks and months, it is set to release serious consequences around the globe through the second half of the year.
Severe droughts look likely in parts of South America, Africa and Australia, alongside devastating monsoons in southern China and a roaring southern jet stream all winter long in North America. Combine this with the fertiliser crisis that has followed recent global events, and a large crop failure during the closing months of 2026 is expected — raising the risk of widespread, deadly famine across multiple stretches of the planet.
Basic facts on El Niño
El Niño's mechanics are well understood by climate scientists, even though its exact regional impacts vary from one occurrence to the next.
- The warm phase of ENSO. El Niño is the warm phase of the El Niño–Southern Oscillation, involving unusually warm sea-surface temperatures in the central and eastern tropical Pacific Ocean.
- Weakened trade winds. It usually weakens Pacific trade winds, changing the normal movement of warm water and rainfall across the Pacific.
- A global disruption, not just a Pacific one. It disturbs weather patterns worldwide, especially rainfall, heatwaves, droughts, floods and cyclone behaviour.
- An irregular cycle. El Niño usually appears every two to seven years, though its timing and strength vary considerably.
- More damaging in a warmer world. El Niño itself is temporary, but because today's planet is already warmer, its effects can be more damaging when combined with climate change.
What's the 2026 prediction really
Forecasters across the world's leading meteorological agencies are converging on the same broad conclusion, even as they differ slightly on timing and confidence.
- A serious forecast for late 2026. El Niño is likely to emerge soon and persist through late 2026 and winter 2026–27; NOAA's May 2026 discussion put the chance at 82% for May–July 2026 and 96% through the Northern Hemisphere winter of 2026–27.
- WMO confirms development is under way. The World Meteorological Organization said in June 2026 that El Niño conditions are developing and could strongly affect global temperature and rainfall patterns.
- IRI sees very high probability. The IRI's ENSO forecast also shows a very high probability of El Niño during 2026, with probabilities of around 97–98% through much of the year.
- Australia remains more cautious. Australia's Bureau of Meteorology was more cautious in May, judging ENSO still technically neutral, but with clear signs of warming and possible El Niño development.
- The honest summary. El Niño 2026 looks highly likely, possibly strong, but exact regional impacts remain uncertain, because El Niño changes probabilities rather than guaranteeing outcomes.
Worst effects of El Niño?
When a strong El Niño takes hold, its effects tend to cluster around a familiar set of hazards.
- Drought and crop failure. Regions such as India, Southeast Asia, Australia, southern Africa and parts of Central America face heightened risk of drought and crop failure.
- Food inflation and hunger risks. Weak rains can damage rice, wheat, maize, pulses, sugar, coffee, cocoa and edible-oil supply chains.
- Floods and extreme rainfall. Other regions, including parts of South America, East Africa, southern China and the southern United States, face floods and extreme rainfall, depending on the event's pattern.
- Heatwaves and marine heatwaves. El Niño often pushes global temperatures upward; the WMO warns this can raise both land and ocean heatwave risks.
- Wildfires, disease and water stress. Drought can worsen forest fires and haze, while abnormal rainfall and heat can increase vector-borne and water-borne disease risks.
El Niño 2026 will affect geopolitics
Beyond the weather itself, a strong El Niño year tends to ripple through politics and strategy in fairly predictable ways.
- Food security politics may intensify. If monsoons or harvests fail, governments may restrict exports of rice, wheat, sugar or onions, creating global price shocks.
- Water disputes may sharpen. This is especially likely in river basins already under stress — for example in South Asia, Southeast Asia, the Nile basin and parts of Central Asia.
- Energy stress may rise. Drought reduces hydropower output, while heatwaves increase electricity demand for cooling, affecting countries dependent on hydropower or imported fuel.
- Migration and unrest risks may grow. This is most likely where drought, food inflation and rural distress combine, particularly in already fragile states rather than everywhere.
- Strategic commodities may be affected. Agricultural exports, insurance markets, shipping, disaster-relief budgets and climate-finance negotiations could all be touched, depending on how strong and where El Niño's impacts land.
Which countries to be affected
Some countries carry structurally higher exposure to an El Niño year than others.
- India. India is high risk, because El Niño can weaken the monsoon, affecting agriculture, reservoirs, food prices and rural incomes; a recent India-focused report said 2026 monsoon rainfall could be below average because of developing El Niño conditions.
- Indonesia, Malaysia and the Philippines. Drought, haze, wildfires, crop losses, hydropower stress and heat risks are major concerns across Southeast Asia.
- Australia. El Niño often raises the risk of heat, drought, bushfires and agricultural stress.
- Peru and Ecuador. Both are historically vulnerable to heavy rainfall, flooding, fisheries disruption and coastal economic damage during eastern Pacific warming.
- Southern African countries. Zimbabwe, Zambia, Malawi, Mozambique, South Africa and Botswana are often vulnerable to drought, maize losses, food insecurity and hydropower shortages during El Niño years.
Glossary and related terms
- El Niño
- The warm phase of the El Niño–Southern Oscillation, marked by unusually warm sea-surface temperatures in the central and eastern tropical Pacific.
- ENSO
- El Niño–Southern Oscillation, a recurring climate pattern of fluctuating ocean temperature and atmospheric pressure across the tropical Pacific, of which El Niño and La Niña are the two opposite phases.
- La Niña
- The cool phase of ENSO, marked by unusually cool sea-surface temperatures in the central and eastern tropical Pacific — broadly the opposite of El Niño.
- Trade winds
- Persistent easterly winds near the equator that normally push warm surface water westward across the Pacific; their weakening is a hallmark of El Niño.
- Sea-surface temperature
- The temperature of the ocean's surface layer, a key variable tracked by forecasters to detect and measure El Niño and La Niña events.
- Thermocline
- A layer within the ocean where temperature changes rapidly with depth, separating warmer surface water from colder water below.
- NOAA
- The National Oceanic and Atmospheric Administration, the United States agency responsible for weather and climate forecasting, including official ENSO outlooks.
- WMO
- World Meteorological Organization, the United Nations agency that coordinates global weather, climate and water-related science and forecasting.
- IRI
- The International Research Institute for Climate and Society, a research body known for producing probabilistic ENSO forecasts.
- Marine heatwave
- A prolonged period of unusually warm ocean temperatures in a given region, capable of disrupting marine ecosystems and fisheries.
- Food security
- Reliable access to sufficient, safe and affordable food, often threatened by droughts, floods or export restrictions during climate shocks.
- Hydropower
- Electricity generated from the energy of flowing or falling water, vulnerable to drought-driven reductions in river flow and reservoir levels.
- Climate finance
- Funding directed toward mitigating or adapting to climate change, including disaster relief, resilience projects and international climate negotiations.
- Teleconnection
- A statistical link between climate patterns in distant regions of the world, through which an event in one ocean basin such as the Pacific can influence weather far away.
Conceptual references
- NOAA, WMO and IRI operational ENSO forecasts and outlook discussions for 2026.
- Scientific literature on the El Niño–Southern Oscillation, ocean-atmosphere coupling and subsurface temperature anomalies.
- Analysis of agricultural commodity markets and food-security risk during past El Niño years.
- Research on climate-driven water disputes, hydropower stress and energy security.
- Studies linking climate shocks to migration, social unrest and fragile-state instability.
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