When climate summits get cancelled by heat: the real cost of Super El Niño on daily life

In June 2026, during London Climate Action Week, organisers cancelled a panel discussion titled “Extreme Heat: Improving governance and strengthening action around the world.” The venue was the London School of Economics’ Shaw Library, a near-100-year-old building that, like much of the city’s historic stock, relies on natural ventilation rather than air conditioning. A Met Office red extreme-heat warning was in force. Temperatures in southern England approached or exceeded record June highs. Organisers cited a clear risk to public health and the wellbeing of speakers and attendees.

The irony was immediate and widely noted. An event designed to advance global understanding of extreme heat could not itself withstand extreme heat in one of the world’s wealthiest cities. That moment was not an isolated curiosity. It was a visible signal of a much larger force already reshaping daily life and economic costs across the planet: a rapidly intensifying Super El Niño.

The Super El Niño we’re in

Few people or organisations remain untouched. In England alone, the May and June 2026 heatwaves were linked to an estimated 2,877 excess heat-associated deaths according to the UK Health Security Agency – nearly double the figure recorded for the whole of summer 2025 and already approaching the previous annual record. Globally, researchers at the Climate Impact Lab project that the additional heat driven by this Super El Niño could contribute to more than 450,000 excess deaths by February 2027, with the heaviest toll falling on countries across Africa, South and Southeast Asia, and Latin America. These figures capture only heat. They do not include the deaths and displacement from floods, landslides, wildfires and drought already unfolding from Peru to Indonesia.

As of early October 2026, sea-surface temperatures in the critical Niño 3.4 region of the central and eastern equatorial Pacific have already surpassed previous records, with anomalies exceeding 3°C and forecasts pointing to seasonal averages around 3.7°C for October–December. The World Meteorological Organization and the U.S. National Oceanic and Atmospheric Administration assess a very high probability that this event will rank among the strongest since at least 1950. It is expected to peak toward the end of 2026 and persist well into 2027.

El Niño is a natural oscillation in which warmer-than-average Pacific waters alter atmospheric circulation, shifting rainfall and temperature patterns worldwide. What distinguishes the current episode is its intensity combined with a significantly warmer global baseline driven by long-term climate change. The result is not simply a repeat of 1997–98 or 2015–16; it is an amplified version of those shocks landing on more exposed populations, more complex supply chains, and higher asset values.

Economic estimates underscore the scale. Past strong El Niño events have been linked to multi-trillion-dollar cumulative losses; research associated with the 1997–98 event, for example, has estimated global economic costs in the order of $5.7 trillion over subsequent years. More recent analyses place potential losses from the current cycle in the hundreds of billions to over a trillion dollars in the near term, with longer-term studies suggesting that intensified El Niño patterns under continued warming could impose cumulative global GDP losses measured in tens of trillions by the end of the century. Latin America and the Caribbean face a possible cumulative GDP reduction of at least 2 per cent over three years, alongside millions more people pushed into poverty. These macroeconomic numbers, however, only partially reflect the everyday costs already visible in households, farms, factories and city streets.

Direct costs and daily-life impacts

Food security is under immediate pressure. Global grain and sugar markets have tightened. In many local markets, staples have risen sharply – onions roughly doubled year-on-year in parts of India during periods of the weak monsoon. Higher cooling demand is pushing electricity consumption and bills upward in cities unaccustomed to prolonged extreme heat. Schools have closed, public transport has faced disruption, and water systems have come under strain. Health services report increased heat-related cases.

The effects reach deeper into daily livelihoods. Off the coast of Peru, one of the world’s most important anchovy fisheries, catches have collapsed in recent months – falling by as much as 99 per cent in some periods – as warmer waters push the fish deeper and disrupt traditional fishing seasons. The resulting squeeze on fishmeal, a critical ingredient in animal feed, feeds through into higher costs for aquaculture and livestock producers worldwide. In Central America and the Caribbean, drought has intensified crop stress and water rationing. Low water levels have already forced the Panama Canal to reduce daily ship transits, lengthening delivery times and raising freight costs for goods that eventually appear on supermarket shelves and in factory inventories.

For businesses the pressures compound. Agricultural yields decline in key producing regions, raising input costs for food and beverage companies and squeezing rural incomes that underpin demand for consumer goods. Logistics chokepoints add friction. Fertiliser and energy price volatility, already elevated by geopolitical factors, intersects with weather-driven production shortfalls. The result is a broad inflationary and demand-side pressure that reaches far beyond the farm gate – higher grocery bills for households, tighter margins for companies, and greater uncertainty for workers whose incomes depend on stable harvests, fisheries or reliable transport.

These impacts are uneven. Some regions experience drought and heat; others face excess rainfall and flooding. The common thread is disruption to the systems people rely on every day – food, water, power, mobility and work.

Regional spotlight: India, the Middle East and Asia

The consequences are particularly acute across India, the Middle East and broader Asia – regions central to global supply chains and home to rapidly growing economies that must manage both development priorities and rising climate risk.

In India the 2026 southwest monsoon recorded one of its weakest performances in more than a decade, with rainfall deficits in the range of 13–15 per cent. Reservoir levels entered the post-monsoon period well below normal, raising concerns for the rabi season. Key agricultural states experienced drought conditions. Food prices responded across onions, sugar, rice, pulses and other staples. Rural demand, which accounts for a significant share of consumption of everyday goods, faces material headwinds. For companies with agricultural supply chains, food-processing operations or substantial rural market exposure, the implications extend from procurement costs and yield variability to inflation pass-through and ESG risk reporting.

Across the Middle East the dominant signal is heat. Above-average temperatures increase electricity demand for cooling and desalination – already major loads on regional power systems. Water-stressed economies that depend heavily on desalination face higher operational costs and infrastructure strain. Rainfall patterns are mixed: some northern areas of the Arabian Peninsula may see wetter conditions, while southern zones carry elevated drought risk. For energy-exporting and rapidly diversifying economies, the episode reinforces the need to integrate physical climate risk into long-term planning, infrastructure design and corporate disclosure.

In Southeast Asia and parts of East Asia the picture includes both drought and storm risk. Indonesia has faced prolonged dry conditions, elevating wildfire and haze threats and placing pressure on rice, palm oil and other commodities. The Philippines and neighbouring countries confront a complex mix of delayed rains, potential drought later in the cycle, and continued typhoon exposure. Delayed planting, reduced irrigation and production shortfalls feed into regional food security and export markets. Manufacturing and logistics networks that depend on stable agricultural inputs or water-dependent operations absorb higher costs and greater uncertainty.

These regional effects do not remain local. Higher rice or sugar prices in Asia influence global food inflation. Disruptions to regional manufacturing or shipping reverberate through international supply chains. For businesses operating across India, the Gulf and Asia, Super El Niño is not a distant meteorological event; it is a near-term operational, financial and strategic factor.

From shock to strategy: building resilience

Treating Super El Niño as a temporary weather anomaly underestimates both its duration and the hotter baseline on which it occurs. Organisations that absorb successive shocks without adjusting strategy will continue to face margin pressure, reporting gaps and reputational exposure. Those that integrate physical climate risk into core decision-making can protect value and identify opportunity.

The central question is how to move from firefighting to forward planning. Practical responses already available include rigorous physical-risk assessment and scenario analysis within ESG frameworks; strengthening water security and regenerative practices in agricultural and industrial supply chains; and the disciplined use of high-integrity carbon markets and nature-based solutions as tools for both risk management and long-term resilience. Anticipatory action – investing in early-warning systems, climate-resilient infrastructure, diversified sourcing and adaptive operations before the next peak – consistently delivers higher returns than reactive recovery after the damage is done.

For companies with operations or sourcing across India, the Middle East and Asia, these steps are moving from voluntary best practice toward business continuity requirements. The organisations that act now – by quantifying exposure, embedding resilience into operations and reporting, and aligning adaptation measures with commercial realities – will be better positioned to navigate the current cycle and those that follow.

The cancellation of a climate panel in London because the building was too hot remains a striking image. It captured, in a single afternoon, a truth that communities and companies across India, the Middle East and Asia already encounter in more consequential forms: extreme heat, disrupted rainfall and cascading economic costs are no longer future scenarios. They are present conditions.

This Super El Niño will eventually peak and decline. The warmer baseline will not. The organisations and policymakers that treat the current episode as a stress test and respond by strengthening their capacity to anticipate, absorb and adapt will be better positioned for the cycles that follow. Those that wait for the next disruption will find the costs higher and the options narrower.

The heat that forced a summit panel indoors is a warning. The more important question is whether businesses and societies treat it as such.

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