The Pacific is sending a warning to the world – and scientists are watching with growing alarm to a potentially record-breaking Super El Niño. The event is gathering strength in the tropical Pacific, raising the prospect of becoming an extraordinary climate occurrence by the end of 2026.
Sea surface temperatures in the east-central Pacific could surge to 4°C above normal – roughly 60% higher than the previous record. That would be far more than another spike on a climate chart. The event could become a planetary weather disruptor. There is a critical difference this time, because the Super El Niño is emerging on top of a planet already warmed by decades of human-driven climate change.
Super El Niño Is Here: One Pacific event, global consequences
El Niño does not stay confined to the ocean where it begins. This warm phase of the El Niño-Southern Oscillation (ENSO) is the planet’s most influential year-to-year climate variation. Under normal conditions, powerful trade winds push warm surface water westward across the Pacific.
But when those winds weaken, the huge reservoir of warm water sloshes eastward. The heat released from this water then changes the atmosphere above the ocean, shifting the Walker circulation and disrupting rainfall and temperature patterns around the world.
Nick Dunstone of the UK Met Office says that when the size of an El Niño increases, its impacts tend to increase as well, although the hardest-hit regions can vary from one event to another.
That ripple is now becoming unusually powerful. Research published in Science has reconstructed the history of El Niño over the past 1,000 years using ancient and modern corals from the Galápagos Islands. The study found that El Niño events have become 40% stronger over the past four decades compared with the pre-industrial era. The findings add to growing evidence that climate change may be amplifying a natural climate phenomenon that already has enormous consequences.
The stronger the El Niño, the bigger the potential disruption. As enormous amounts of heat build across the Pacific, the phenomenon can disturb atmospheric circulation thousands of kilometers away, reshaping rainfall patterns, intensifying droughts and amplifying extreme weather across continents.
The consequences could be devastating. Forests could burn, crops could fail, communities could be inundated and food supplies could come under renewed pressure. Some regions may be battered by torrential rain and floods, while others face relentless heat and worsening drought.
The result could be a dangerous collision between a powerful natural climate cycle and an atmosphere already loaded with excess heat – turning an extraordinary El Niño into a global test of just how much climate extremes can escalate. A Super El Niño can, therefore, rearrange atmospheric circulation across the planet, turning some regions hotter and drier while sending torrents of rain into others. It can scorch forests, damage crops, flood communities and disrupt food supplies. And this time, the natural climate phenomenon is unfolding on top of decades of human-driven global warming.
Forests could become tinderboxes: Rising Risks of Drought and wildfire
In South-East Asia and Australia, the current El Niño is expected to bring drier conditions. The Amazon, Borneo and Indonesia are also major wildfire concerns. With atmospheric circulation associated with El Niño shifts, dry weather, high temperatures and parched vegetation can turn forests into tinderboxes.
History offers a frightening glimpse of what can happen. During the 1982–83 Super El Niño, the “Great Fire of Borneo” destroyed about 36,000 square kilometres of rainforest. Now, thousands of square kilometres of Borneo are burning again, with its vulnerable peatlands releasing enormous amounts of carbon dioxide. The danger is not confined to trees. When forests burn, carbon is released into the atmosphere – adding another layer to the climate crisis.
Food Prices Could Feel the Shock with Agriculture Loss
Food security is another major concern – the next warning sign that could arrive on dinner tables. El Niño is already threatening rainfall in agricultural regions, including India, Central America, or other important agricultural regions. India is experiencing its weakest monsoon since 2009, with rainfall on track to be 15% below average. Monsoon rainfall supplies water to about 60% of India’s agricultural areas, the consequences for crops could be substantial.
Rice is particularly exposed. Global rice production is expected to fall by around 9 million tonnes in 2026–27, according to the report. That could push prices higher for one of the world’s most important staple foods -relied upon by roughly half of the global population. Coffee-producing areas in Central America are also facing the prospect of drier conditions. The message is clear: El Niño does not simply change weather maps. It can reach directly into farms, food markets and household budgets. A climate event that begins in the Pacific could therefore end up affecting what people pay for food thousands of kilometres away.
Somewhere Else, the Problem will be Too Much Water: While some Regions Dry Out, Others Could Drown
El Niño does not simply dry out the world. Its effects are not uniform. It moves rainfall. While parts of Asia and Australia face drought risks, Paraguay, Uruguay and southern Brazil are expected to receive more rain than usual. During the 2015–16 Super El Niño, flooding in those regions displaced more than 100,000 people. Wetter and stormier conditions are also possible in the UK and parts of the United States. This uneven distribution of impacts is one of the defining characteristics of El Niño. For communities already living on the edge of climate vulnerability, another round of extreme weather could be devastating.
The World’s Oceans are Already Exceptionally Warm Breaking Records
Perhaps the most troubling part of the story is what is happening beneath the surface. On 26 August 2026, global average sea surface temperature reached a new record. Ocean temperatures have been rising for decades, but the timing of this particular record was unusual because August is not normally the peak month for global ocean temperatures. El Niño is adding even more heat to an ocean that has already been warming for decades. As Samantha Burgess of the Copernicus Climate Change Service put it, El Niño is adding heat “on top of decades of human-driven warming.” That distinction matters.
El Niño is a natural climate cycle. But it is now operating in a warmer world. That combination is what makes the current event so significant. El Niño is a natural phenomenon, but climate change is not. When a powerful natural climate cycle operates within an already overheated Earth system, its consequences can become considerably more dangerous. Scientists Find a Troubling Historical Signal: Could 2027 become the hottest year on record?
A major study published in Science has added another layer to the warning. Researchers examined modern and ancient corals from the Galápagos Islands to reconstruct El Niño activity over the past 1,000 years. Their conclusion was striking: El Niño events over the past four decades have become about 40% stronger than during the pre-industrial era. The researchers used coral chemistry as a natural climate archive.
By examining layers formed over centuries, they reconstructed changes in seawater temperature and identified the fingerprints of past El Niño events. Climate models were then used to test whether natural factors such as volcanic eruptions and changes in solar activity could explain the increase. They could not. The researchers concluded that human-driven climate change was the most likely explanation for the observed strengthening.
Is Global Warming Supercharging El Niño? The Fingerprints of Climate Change
That is now one of the biggest questions facing climate scientists. One possible explanation involves ocean stratification – changes in the structure of the tropical Pacific Ocean. As the planet warms and rainfall increases, the surface layer of the ocean can become less dense and more isolated from colder water below.
That could make the surface more responsive to changing winds, allowing more warm water to shift eastward during El Niño. But scientists are careful not to claim the mystery is solved. It remains uncertain whether El Niño will continue strengthening indefinitely. If the eastern Pacific eventually becomes warm enough to resemble the western Pacific, the temperature contrast driving ENSO could weaken. For now, however, the trend is deeply concerning.
2027 could bring another temperature record
El Niño typically pushes global temperatures higher. A Super El Niño could push them much higher. The current event is expected to drive global temperatures to exceptional levels, with scientists widely anticipating that 2027 could become the hottest year ever observed.
Global temperature rise is also expected to exceed 1.5°C during the year, although a single year above that level does not constitute a formal breach of the Paris Agreement’s long-term temperature goal. The significance is nevertheless hard to ignore. Every fraction of additional warming increases pressure on ecosystems, water supplies, agriculture and infrastructure.
One piece of good news – but only one
There is an unusual bright spot. El Niño can suppress Atlantic hurricane activity because stronger upper-level winds create wind shear that can disrupt developing tropical storms. The Atlantic hurricane season has had an unusually quiet start, and NOAA expects relatively limited major hurricane activity under current conditions. But the Pacific can tell a very different story. Weaker winds and warm ocean waters can help fuel tropical storms there.
With atmospheric convection shifted eastward, storms affecting Asia may have more time to absorb energy from the ocean before reaching land. One ocean’s relative calm can therefore coincide with another’s growing danger.
The danger may not end with El Niño
There is another twist. A powerful El Niño is often followed by La Niña, the cooler phase of the ENSO cycle. La Niña can bring a different set of extreme weather patterns, potentially subjecting communities and ecosystems to another abrupt climate shift just as they begin recovering from El Niño’s impacts. That possibility highlights a growing problem in a warming world.
The greatest danger may not be one extreme event. It may be one extreme event followed by another before people, ecosystems and economies have time to recover. Again, El Niño’s effects are not one-directional. The same climate phenomenon can reduce one threat while intensifying another.
A warning written in heat, water and fire
The Super El Niño now building in the Pacific is not simply another chapter in the history of climate variability. It is a stress test for a warmer planet.
Droughts could intensify. Forests could burn. Crops could fail. Floodwaters could overwhelm communities. Food prices could rise. Infrastructure could be damaged. Ecosystems could suffer another major blow. And behind all of it is a question that scientists are only beginning to answer:
What happens when one of Earth’s most powerful natural climate cycles collides with a rapidly warming planet? The answer is already beginning to emerge across the Pacific. And the world is watching.
