The next El Niño is no longer just a climate story. Forecasts now point to an unusually strong event that could disrupt agriculture, energy demand, trade and economic growth across multiple regions.
The US Climate Prediction Center says there is more than a 90% chance of a very strong El Niño during the Northern Hemisphere fall and winter of 2026–27, while the probability of an event reaching historic strength during October–December is about 69%.
The important caveat: the economic-loss figures are estimates, not a forecast that the world will definitely lose $10 trillion. The ultimate damage depends heavily on where droughts, floods, heat and storms occur and how governments and businesses respond.
Why This El Niño Matters
El Niño occurs when unusually warm water develops across the tropical Pacific, disrupting atmospheric circulation and shifting rainfall and temperature patterns around the world.
A strong event can produce:
- Drought in some agricultural regions
- Excessive rainfall and flooding elsewhere
- Extreme heat
- Disrupted transportation
- Lower crop yields
- Changes in electricity demand
- Damage to infrastructure
- Higher food prices
The 2026 event is particularly concerning because it is developing against an already unusually warm global climate, which can amplify or alter the normal El Niño effects.
The Trillion-Dollar Risk
Historical evidence gives some idea of the potential scale.
A Dartmouth study published in Science estimated that the 1982–83 El Niño was associated with around $4.1 trillion in global income losses over the following five years, while the 1997–98 event was associated with about $5.7 trillion.
Those numbers should not be interpreted as a simple price tag for the coming event.
The methodology measures longer-term economic effects, including slower growth after the weather shock.
Still, it shows why an exceptionally strong El Niño can become an economic problem rather than merely a meteorological event.
Food Could Be the First Major Transmission Channel
Agriculture is particularly exposed.
Weather changes can hit:
- Coffee
- Cocoa
- Wheat
- Rice
- Sugar
- Soybeans
- Corn
- Palm oil
Recent market reporting already points to rising concern over agricultural commodities as traders price in potential crop disruptions.
But the impact will not be uniformly negative.
Some regions could actually benefit from additional rainfall.
That is already visible in Latin America: southern parts of Brazil, Argentina, Paraguay and Uruguay could receive more favorable moisture, while northern Brazil faces greater drought and heat risks.
So the real issue is regional disruption, not simply “El Niño means global crop failure.”
India Could Be Particularly Important
India is one of the countries investors should watch closely.
El Niño can disrupt the Indian monsoon, creating substantial risks for agriculture, food prices and rural incomes.
Reuters’ analysis of corporate disclosures found that Indian companies have mentioned El Niño far more frequently than US companies, reflecting the country’s sensitivity to rainfall patterns.
A weak monsoon could affect:
Food production → food inflation → household spending → interest rates → economic growth.
That makes El Niño relevant to monetary policy, not just agriculture.
Latin America Faces a Complicated Picture
Latin America could see both winners and losers.
Southern agricultural regions could receive more rainfall, potentially supporting crops.
But northern and western Brazil face drought and heat risks.
Peru and Chile face their own problems, including flooding and water shortages, while Peru’s fishing industry is already being affected by warmer waters pushing fish deeper.
The Panama Canal is another potential vulnerability because drought can restrict shipping capacity.
That means El Niño can disrupt global trade even when the underlying problem is thousands of miles away from the final consumer.
Energy Demand Could Swing Sharply
El Niño can also change electricity demand.
Extreme heat increases air-conditioning use.
Drought can reduce hydroelectric generation.
Changes in natural-gas and power demand can then affect regional energy prices.
This creates a potentially uncomfortable combination:
Higher temperatures + disrupted hydro power + stronger electricity demand.
Energy companies could therefore experience very different outcomes depending on geography.
Some may suffer from disrupted production.
Others could benefit from higher power prices.
Global Supply Chains Are Vulnerable
The economic damage doesn’t stop at farms.
Extreme weather can interfere with:
- Ports
- Railways
- Roads
- Rivers
- Mines
- Warehouses
- Power grids
- Manufacturing plants
That creates secondary effects.
A factory may have sufficient inventory but still be unable to operate because a supplier cannot deliver components.
A commodity may exist physically but become more expensive because transportation is disrupted.
This is why El Niño can produce inflation even when demand itself is weakening.
The Panama Canal Is a Key Example
The Panama Canal depends heavily on freshwater.
Drought can force authorities to reduce the number or size of ships using the canal.
That raises transportation costs and can force vessels onto longer routes.
The effect spreads beyond the Americas because the canal is part of global supply chains connecting the Atlantic and Pacific.
El Niño therefore has the potential to become a shipping-cost shock as well as a food and energy shock.
But the World Is Better Prepared Than It Was
There is an important counterargument to the most alarming forecasts.
Global agriculture has changed dramatically since previous major El Niño events.
Crop yields have improved.
Drought-resistant varieties are more widely available.
Irrigation has expanded.
Precision agriculture has improved.
Global grain inventories are relatively strong.
Brazil and Russia have also become major agricultural exporters, providing additional sources of supply.
India and China also hold substantial grain inventories that can provide a buffer against temporary production shocks.
So comparing 2026 directly with 1982 or 1997 would be misleading.
The world has more tools to absorb a supply shock.
Climate Change Complicates the Forecast
The harder problem is that El Niño is occurring in a warmer world.
That does not mean climate change simply “causes” El Niño.
It means the baseline conditions under which El Niño operates have changed.
Scientists say global warming can amplify or modify the effects of the phenomenon, making regional outcomes harder to predict.
That uncertainty matters for businesses.
A company cannot simply use historical El Niño patterns and assume they will repeat exactly.
Businesses Are Already Preparing
Corporate concern has risen sharply.
An analysis of 1,443 corporate documents and earnings calls found 478 companies discussing El Niño between May and August, with mentions reaching their highest level since 2019.
Companies are focusing heavily on:
- Supply-chain stress testing
- Agricultural exposure
- Inventory planning
- Insurance
- Energy demand
- Commodity prices
- Infrastructure protection
That is arguably more useful than simply looking at climate forecasts.
If companies are changing procurement and inventory decisions now, the event is already affecting economic behavior.
The Biggest Risk Is Inflation
For investors, the most interesting transmission mechanism may be inflation.
Consider the chain:
Drought → lower crop output → higher food prices
or:
Heat → higher electricity demand → higher power prices
or:
Drought → lower canal capacity → higher shipping costs → higher import prices
Those effects can arrive while economic growth is simultaneously weakening.
That creates a stagflationary risk.
Central banks cannot easily solve a drought with higher interest rates.
But they may still have to respond if temporary commodity inflation starts spreading into broader prices.
Markets Won’t All Lose
The impact will be highly uneven.
Potential beneficiaries could include some:
- Agricultural producers
- Grain exporters
- Fertilizer companies
- Energy producers
- Electricity generators
- Commodity traders
- Weather-risk insurers
Potential losers could include:
- Food processors
- Import-dependent countries
- Shipping-intensive businesses
- Agricultural producers in drought zones
- Hydropower-dependent economies
- Companies with fragile supply chains
That makes El Niño more of a relative-value story than a simple “risk-off” event.
What Investors Should Watch
NOAA Forecasts
The probability and projected intensity of the event remain the most important starting points.
Crop Conditions
Watch South American, Asian and Australian crop forecasts.
Commodity Prices
Coffee, cocoa, grains, sugar and energy could react before official production data arrive.
Monsoon Data
India’s rainfall will be particularly important.
Panama Canal Restrictions
Any tightening would signal growing logistics stress.
Food Inflation
The key question is whether commodity shocks reach consumer prices.
Corporate Guidance
Companies with significant agricultural, logistics or energy exposure may begin quantifying the impact.
The Bigger Picture
The headline “El Niño could cost the world trillions” is attention-grabbing, but the real story is more nuanced.
The scientific warning is serious: the US forecaster now puts the probability of a very strong 2026–27 El Niño above 90%, with a 69% chance of historic strength in the October–December period.
But the trillions in potential economic losses come from historical relationships and economic modeling, not from a precise prediction of 2026–27 damage.
The bigger concern is the combination of extreme weather + already elevated global temperatures + fragile supply chains + geopolitical disruptions.
The world also has better agricultural inventories and technology than it did during previous major El Niño events, which could substantially reduce the damage.
So the right way to think about this isn’t:
“El Niño will cost the world $10 trillion.”
It’s:
“A potentially historic El Niño is increasing the probability of simultaneous shocks to food, energy, transportation and economic growth — and investors need to identify where those shocks will land.”
