After Kerala’s Deadliest Landslide, the Hardest Thing to Rebuild Was Childhood
In Wayanad, part of the ecologically fragile Western Ghats, a school at Vellarmala had no training in trauma recovery when the landslide hit — so its teachers built their own response, one now echoed by research and by disaster-recovery efforts in Nepal and the Philippines. What worked, what it took, and where it still falls short for the next school this happens to.
GVHSS Vellarmala, rebuilt with support from the Builders Association of India, as the school community continues its recovery after the Chooralmala landslide. Image credit: Vaishnavi VS
On the morning of July 30, 2024, one of Kerala’s deadliest landslides tore through Chooralmala and Mundakkai in Wayanad. As hillsides collapsed under relentless monsoon rain, entire neighbourhoods were swept away, killing 298 people. Among the dead were 33 students from the Vellarmala Government Vocational Higher Secondary School (VHSS). The school campus itself disappeared beneath mud and boulders, taking with it classrooms, a playground, a library and years of childhood memory.
When classes resumed months later, the children had a school again — but not the one they remembered. Friends were missing. Familiar surroundings were gone. The laughter that once filled the corridors was buried alongside students who never returned.
A memorial display at GVHSS Vellarmala honours students who lost their lives in the Chooralmala landslide. Image credit: Vaishnavi VS
That was when the teachers realised they were not simply reopening a school. They were helping children rebuild a childhood that a disaster had shattered.
When Learning Had to Wait
The Meppadi school today has 331 students and 28 teachers. But in the weeks after the landslide, when the school community was still grappling with loss and displacement, the staff knew that returning to textbooks could not be the first priority.
Ninety-seven students from Classes 1 to 10 had been directly affected by the landslide — either injured, displaced, or bereaved — split almost evenly between girls and boys. Others had lost relatives or friends, including classmates who sat beside them every day. For the first month, the school itself was pressed into service as a relief camp. With the original campus destroyed, students were relocated to the kitchen and dining hall of another school compound.
The numbers behind Vellarmala’s recovery, drawn from EdPublica’s ground reporting, show the scale of loss and the difficult journey of rebuilding a school and a childhood after the Chooralmala landslide.
For two months, academics were set aside entirely. Instead, the teachers focused on one thing: keeping the children together, and giving them a routine. Students arrived in the morning, ate breakfast and lunch, took part in activities, had evening snacks, and stayed through the day.
“We did not give the students a chance to overthink anything,” Unnikrishnan, a teacher who has worked at the school for 20 years, told EdPublica.
But even with the children physically back together, something was missing. “Both children and teachers have a sense of sadness regarding the disaster,” the headmistress Jesna Jose told EdPublica. “Even though they don’t show it often, we can feel it.” The children were together again. The school did not yet sound like itself.
Then Came the Smile
The change began with something that had nothing to do with textbooks.
Two teachers from a government school in Pathanamthitta, a district in south-central Kerala—Manoj Sini and K.S. Binu—arrived at Vellarmala dressed as clowns. They walked into a Class 1 classroom, played music, and began performing comic routines. The children laughed. Then the teachers laughed too.
“All of a sudden, the children started laughing. Seeing the children laugh, the teachers also started laughing,” Unnikrishnan recalls. It was a small moment. But after months of grief, it meant something far larger.
“That’s when we understood that art was the medicine,” he says.
The insight that followed was a quiet but important one: recovery did not have to begin with talking about the disaster. Sometimes, it could begin with giving children a reason to laugh.
“Once there was a smile, we could carry things forward. That was the turning point in rebuilding the school.”
Finding What Each Child Could Do
From there, the teachers began looking beyond what the children had lost and toward what they still had to rebuild the childhood.
They individually studied the 97 directly affected students to identify their interests and abilities. Some were drawn to craft, others to computers, art, sport, or science. Children were grouped by interest, and outside experts were brought in to train them — many arriving without any fee, through the teachers’ own personal networks and friendships.
The school became, for a period, a working studio of drama, oppana (a traditional Muslim wedding dance performed by women), nadan pattu (Kerala folk songs) and vanjippattu (traditional boat songs). A science expert ran demonstrations. A craft teacher introduced bookbinding and art. Students were entered into science exhibitions and arts festivals.
A display of trophies, awards and student projects at GVHSS Vellarmala, reflecting the achievements and resilience of the school community after the Chooralmala landslide. Image credit: Vaishnavi VS
This was not simply keeping children occupied. It was giving them a structured way to discover themselves again — and it is the detail that separates what happened at Vellarmala from a generic “art therapy helped” narrative: the intervention was individually mapped, expert-led, and sustained, not a single feel-good workshop.
The results reached a public stage. Students from the school delivered the first dance programme at the State School Art Festival, and later performed Vellapokkathil (In the Flood) at the Kerala State School Youth Festival 2024 — all seven performers survivors of the Chooralmala landslide themselves.
Based on a story by the Malayalam writer Thakazhi Sivasankara Pillai, the play depicts communities and animals caught in a catastrophic flood. For the students performing it, the story was inseparable from what they had lived through months earlier — making the performance both intensely personal and difficult to watch as fiction.
Where Research Meets the Ground
What the Vellarmala teachers arrived at through instinct and trial finds independent confirmation in a study published in 2025 in the journal Development in Practice. Researcher V. Akhila and colleagues, drawing on direct involvement in the relief camps set up after the landslide, documented the same emotional terrain the teachers describe: survivors carrying acute guilt at having lived when neighbours and family did not, a disruption to “sense of security, identity, and hope,” and heightened anxiety, sleep disturbance and fear that did not resolve quickly.
Relief workers survey the aftermath of the Chooralmala landslide in Wayanad, where homes, roads and livelihoods were swept away by the disaster. Image credit: Ahamedhjewadh / Wikimedia Commons (CC0 1.0)
The study examines the toll on first responders, many of whom were themselves survivors or had lost people they knew, and who were frequently deployed into relief work without any prior debriefing — carrying the emotional weight of that period into their daily lives long afterward. It is a reminder that “recovery” in a disaster zone is not a category that applies only to the visibly affected; it extends to everyone who worked to hold the response together, including, arguably, teachers like Unnikrishnan.
The researchers also flag something the Vellarmala experience illustrates directly: that mental health impacts fall unevenly across a population — hitting children, older residents, people with disabilities, and those relocated from outside the immediate community hardest — and that longer-term psychological support after landslides remains patchy and poorly coordinated almost everywhere it has been studied.
When Grief Returned
But there is no single fix for what these students had endured. The return of laughter did not mean the children had forgotten what happened.
As the SSLC (Secondary School Leaving Certificate, Kerala’s Grade 10 board examination) approached, seven students — three girls and four boys — told their teachers they did not want to sit the exam. Many of the friends who should have been sitting beside them had died in the landslide, and the exam hall itself was a reminder of who was missing.
The teachers went to each of the seven students’ homes and persuaded them, one by one, to take the examination. They did. The school went on to record a 100 percent pass rate. At the farewell ceremony that followed, many students cried uncontrollably.
The episode is the clearest evidence that recovery here was never a straight line. There could be laughter one day and grief returning without warning the next. What the teachers had learned by then was not to expect children to simply “move on.” They stayed present through the difficult moments, and kept building spaces where students could learn, participate and be heard.
“Teachers gave them 24-hour support,” Unnikrishnan says. “It was survival. It was also a challenge for the teachers.”
Children and Disasters: A Global Problem
What happened at Chooralmala is a single, closely observed instance of a far larger pattern. UNICEF’s most recent global analysis found that at least 242 million students across 85 countries and territories had their schooling disrupted by extreme climate events in a single year — 2024 — through heatwaves, tropical cyclones, storms, floods and droughts. At least one in seven students worldwide experienced some form of climate-linked disruption to their education that year.
South Asia was the worst-affected region, with 128 million students facing climate-related school disruption in 2024 alone; heatwaves by themselves affected an estimated 171 million students globally. The disruption is rarely confined to missed classes. Extreme heat and other hazards damage school infrastructure, make the route to school unsafe, and measurably affect children’s concentration, memory and physical and mental health — the visible tip of a much larger iceberg of harm.
The scale behind these numbers is worth sitting with. A 2024 narrative review co-authored by researchers at the World Health Organization, synthesising over a decade of peer-reviewed evidence on climate change and child health, notes that 2022 alone saw 387 climate-related disasters worldwide — storms, floods, wildfires and droughts — that killed more than 30,000 people.
The review’s consistent finding across the literature it examined is that these events measurably affect children’s mental and physical health, nutrition, safety, learning, and the caregiving relationships that hold a childhood together — precisely the five domains Vellarmala’s teachers found themselves rebuilding one at a time.
Speaking to EdPublica, Dr Kavitha G. Bhaskaran, a guest faculty member in the Department of Psychology and Disaster Management at Sree Sankaracharya University of Sanskrit, said children exposed to recurrent landslides can experience withdrawal, fear, nightmares and a loss of interest in activities they once enjoyed, along with a lasting fear of loud sounds, rain or even the night itself.
Dr Upasona Ghosh, Technical Expert–Climate Change and Health at the Centre for Environmental Health and a member of the WHO South-East Asia Regional Expert Group on Environmental Determinants of Health and Climate Change, told EdPublica she has observed the same patterns working with children in the Indian Sundarbans, where communities face recurrent flooding. In that setting, children were simply given colours and notebooks and asked to draw their fear — no explanation required. They could draw the sea, the floodwater, or the destruction they had witnessed, without needing the vocabulary to describe it. “The entire page might be black,” Ghosh says. “That could reflect the state of their mind.”
Ghosh also points out that the damage does not stop with the child. When a disaster disrupts a parent’s livelihood, access to healthcare and the ability to seek care for a child both suffer. Children can simultaneously lose access to school-based nutrition, health and hygiene programmes when education itself is disrupted — and they lose something harder to name. “Their school, friends, teachers and other people in their village form an important part of their social world,” she says. When that world is disrupted, recovery requires far more than reopening a classroom door.
Two Other Disasters, Two Other Answers
Wayanad is not the first place to confront this problem, and the responses elsewhere are instructive — both for what worked and for what the Vellarmala teachers had to invent on their own because it did not yet exist as institutional practice.
After Typhoon Haiyan (known locally as Yolanda) devastated the central Philippines in November 2013 — one of the strongest tropical storms ever recorded, affecting some 16 million people — the country’s Department of Education partnered with UNESCO and the Psychological Association of the Philippines to produce a formal teachers’ manual on psychosocial intervention for disaster-affected students.
The underlying premise mirrors exactly what Unnikrishnan and his colleagues discovered through trial and error: that teachers, positioned closest to children day after day, are often better placed than outside specialists to help a child begin processing trauma. In the immediate aftermath, volunteers in Cebu were running storytelling and “bibliotherapy” sessions with children in evacuation centres even before the typhoon made landfall — art and story as a first response, not an afterthought, much as the clown routine became at Vellarmala.
Nepal’s 2015 earthquake response took a more structural approach to a problem the Wayanad school solved through personal goodwill. Finn Church Aid and its Nepali partner CMC-Nepal built a peer-support network for teachers across 61 schools, training “psychosocial focal teachers” who could escalate serious cases to specialists in Kathmandu.
A needs assessment following the earthquake found more than 60 percent of affected children suffering sleep problems, alongside bullying, anxiousness and bedwetting — a set of symptoms that closely tracks what Bhaskaran describes seeing in Wayanad. What Nepal built was, in effect, an institutionalised version of what Vellarmala improvised: a formal mechanism for identifying which children need more than a routine and a smile, and where to send them.
The comparison is worth sitting with honestly rather than folding into the uplift: the expert network the Vellarmala teachers built by calling in personal favours was remarkable, but it was also contingent — a product of one community’s specific relationships and one headmaster’s persistence. Nepal’s model suggests what it might look like scaled and made durable rather than dependent on individual goodwill.
The Losses That Cannot Be Counted
There is a reason the language around this issue keeps reaching for something beyond the vocabulary of disaster economics. A damage assessment can price a destroyed school building, a washed-out road, a flattened home. It is far harder to price a child’s lost friendship, a familiar playground, or the emotional security that came from an intact community.
The UN Framework Convention on Climate Change has a formal category for this: non-economic loss and damage (NELD) — harm that resists financial quantification, spanning loss of life and health to the erosion of territory, cultural heritage, and social and cultural identity.
For children, these losses are acutely personal. Harjeet Singh, climate activist and founding director of the Satat Sampada Climate Foundation, told EdPublica that the destruction of a school should never be filed simply under lost infrastructure. “For children, a school is a sanctuary, a site of identity, and an ecosystem of emotional safety,” he says. What a disaster like Wayanad’s takes, in his framing, includes shattered social bonds and the sudden disappearance of the developmental environment a child grew up inside — which is why, he argues, recovery cannot stop at concrete and steel. “Recovery cannot just be about pouring concrete,” Singh says. “It must be about restoring the social fabric.”
This is no longer only a conceptual argument. The Fund for Responding to Loss and Damage, operational under the UNFCCC since 2022 and hosted in the Philippines with the World Bank as its interim trustee, holds close to $488 million, with a first round of disbursements — roughly $250 million — scheduled to begin rolling out in 2025 and 2026. Mental health and psychosocial support is explicitly listed among the categories countries can submit project proposals for, alongside cultural heritage preservation and dignified relocation.
In principle, this means the kind of psychosocial infrastructure Nepal built with international NGO funding after 2015 — and the kind Vellarmala’s teachers had to invent themselves in 2024 — now has a formal funding channel it could be built through, if Kerala or the Government of India chose to apply.
What India’s Own Guidelines Say
India is not without a policy framework for exactly this problem — which makes the Vellarmala story more pointed, not less. The National Disaster Management Authority, working with the Tata Institute of Social Sciences’ Rahbar programme, updated its National Disaster Management Guidelines on Mental Health and Psychosocial Support Services in Disasters in 2023, setting out a trauma-informed, whole-of-society approach meant to be built into every stage of the disaster management cycle, not bolted on afterward.
Alongside it sits the older National School Safety Policy Guidelines of 2016, which task School Management Committees and a designated “Safety Focal Point Teacher” in each school with disaster preparedness — including, on paper, psychosocial elements, though the bulk of that programme’s implementation history runs toward physical safety: building codes, mock drills, evacuation plans.
Two things are worth sitting with here. First, the guidelines exist — India is not starting from zero the way some of its neighbours were in 2015. Second, none of what the guidelines describe appears to have reached Vellarmala in July 2024. What the teachers built — the interest-mapping, the expert network, the sustained follow-through into exam season — was invented on the ground, by people with no formal psychosocial training, drawing on personal contacts rather than a state or district implementation plan.
That gap between the guideline and the ground is, in its own way, the story: India has written down roughly what Nepal built through international NGO funding, but writing it down and delivering it to a village school in Meppadi panchayat during the actual emergency turned out to be two very different things.
What This Adds Up To
Set side by side, Wayanad, Tacloban and the villages of rural Nepal point toward the same conclusion from three different directions: formal mental health infrastructure for children after a climate disaster is, almost everywhere, arriving late, underfunded, or not at all — and the gap is being filled, when it is filled, by whoever is standing closest to the child. Sometimes that is a trained peer-support teacher network built with international funding. Sometimes it is two teachers in clown costumes who happened to believe art might help.
Both approaches worked, to a point. But only one of them is replicable on demand, in a district that doesn’t happen to have a headmaster with the right personal contacts. That is the uncomfortable finding underneath the uplifting parts of this story: what saved Vellarmala’s children was extraordinary improvisation under pressure, not policy — and extraordinary improvisation is, by definition, not something the next disaster-hit school can count on.
Rebuilding a Childhood
Chooralmala’s teachers never had the power to restore everything the landslide took. They could not bring back the children who died. They could not recreate the old school, or return the community to what it was before July 30, 2024.
What they did was give children back a routine when their lives had been upended. They found each child’s individual talent when grief had become the only story anyone was telling about them. They brought artists, scientists and experts into children’s lives who would otherwise never have crossed paths with a village school in Wayanad. They encouraged children to dance, sing, perform, experiment and compete — and when children struggled, as the SSLC refusals showed they still would, the teachers stayed rather than declaring the recovery finished.
What Chooralmala’s teachers proved is not that children are resilient. That word is used too easily after disasters, as though recovery is something that simply happens with time. It isn’t. Resilience had to be built—patiently, deliberately, by teachers who chose to replace silence with music, grief with art, isolation with friendship, and fear with purpose.
The tragedy is that none of this should have depended on extraordinary people doing extraordinary things. By the time the next flood, landslide or cyclone tears through another school, children should not have to wait for a headmaster with the right contacts or two teachers willing to arrive dressed as clowns. They should find a system that already knows how to help them heal.
Climate change is making disasters more frequent, putting schools in the path of floods, landslides and storms. When classrooms disappear, books are lost and playgrounds are buried, rebuilding the school is only the beginning. The harder task is helping children rebuild the sense of safety, routine and childhood that the disaster took from them.
Vaishnavi VS is an Editorial Associate at EdPublica. She holds a Master's degree in Mass Communication from Pondicherry University, India. She writes on education, science, environment, innovation, and public policy.
15,800 Additional Heat Deaths Projected: Can India’s Mortality Data Capture the Real Toll?
India could see 15,800 additional heat-related deaths, according to a Climate Impact Lab projection. But can India’s mortality data capture the true health toll of extreme heat and rising temperatures?
Women and children carry water along a dry rural road in India, highlighting the challenges of extreme heat and water scarcity. Image credit: Gyan shahane/Unsplash
India is heading into another winter against the backdrop of a changing climate, with scientists warning that rising global temperatures are altering the country’s weather patterns. Heatwaves are becoming a growing public-health concern, yet one question remains hard to answer: “How many heat deaths is India actually recording from extreme heat?”
A new report by the Climate Impact Lab, an initiative of the University of Chicago’s Energy Policy Institute, puts the toll in the thousands. Titled ‘451,000 at Risk’ and published in September 2026, it projects about 15,800 additional deaths in India, with a stated range of ±1,600, between September 2026 and February 2027. The comparison is with the same months of an average year between 1996 and 2025. That makes India the fourth most affected country in the report’s ranking, behind Nigeria, Indonesia and Sudan. The figure comes with an important caveat: it is a modelled estimate, not a count of deaths recorded by India’s health system.
The timing matters. Of India’s projected total, 7,400 deaths fall between December and February, and the Lab expects heat-related deaths in India and Pakistan to keep rising into their summer, beyond the forecast window. It says it will update its projections as the El Niño progresses.
El Niño, the ‘Little Boy’
El Niño is Spanish for ‘the little boy’, but the concern it is causing is far from small as global temperatures continue to reach exceptional levels.
El Niño is a naturally occurring climate pattern associated with unusually warm waters in the central and eastern tropical Pacific Ocean. It can temporarily push global temperatures higher and influence rainfall and temperature patterns across the world, including the Indian monsoon. The Lab describes the current event as a ‘Super El Niño’ that began in June and is expected to last through the northern-hemisphere spring, and notes that it could become the strongest on record.
The report projects that global land temperatures will be about 1.2°C above normal in the coming months, largely because of El Niño. That is comparable to the warming climate change is projected to deliver 20 years from now, and the Lab expects 44 per cent more extremely hot days than in a normal year.
Scientists have increasingly examined El Niño alongside the longer-term influence of human-caused climate change. While El Niño is a natural phenomenon, its effects occur against a warmer global baseline created by the accumulation of greenhouse gases in the atmosphere.
Recent records show the scale of that warming. The EU’s Copernicus Climate Change Service has recorded exceptionally warm months and seasons in recent years, and 2024 was the first calendar year in which the global mean temperature exceeded 1.5°C above the pre-industrial level, according to the Lancet Countdown. Single months or years above 1.5°C do not by themselves mean the Paris Agreement limit has been breached, which is judged on a multidecadal average. On 2 September, the UN Environment Programme (UNEP) published its ‘Limiting Overshoot’ report, which warns that global temperature rise is set to cross 1.5°C, likely within the next few years.
An aerial view of a wildfire burning through dry vegetation, highlighting the growing risk of extreme heat and fire in a warming climate.Image credit:Kelly/Pexels
The changing climate is also being felt in more variable rainfall. According to the India Meteorological Department (IMD), India received 706.9 mm of rain between 1 June and 22 September against a normal of 832.4 mm, a deficit of about 15 per cent. Rainfall has not been uniform across the country: some regions have had significant rain, while others have faced prolonged deficits or intense, short-duration downpours.
Rainfall, temperature and humidity also interact to shape heat exposure. A warmer atmosphere can increase the intensity of certain heat events, while high humidity makes it harder for the body to cool itself through sweating.
The Hidden Mortality Problem
The 2025 report of the Lancet Countdown on Health and Climate Change found that heat-related deaths have risen by 63 per cent since the 1990s, averaging an estimated 546,000 a year between 2012 and 2021.
The Lab projects around 451,000 additional heat-related deaths worldwide, compared with a normal year, from June 2026 to February 2027, the first nine months of the El Niño event. About 239,000 of those (±11,000) fall in the six months from September to February, the same window as India’s figure.
The Global South is expected to be hit hardest. Nigeria, Sudan, Niger and Chad, which the report groups as the Sahel, together face 66,800 additional deaths, of which Nigeria accounts for around 31,400, Sudan 17,500, Niger 10,000 and Chad 8,000. Indonesia is projected to see 19,300 additional deaths, and the Philippines, Vietnam, Thailand and Cambodia together 19,400. Brazil’s projected figure is 13,300.
Emily Grover-Kopec, Director within the Energy & Climate practice at Rhodium Group and co-author of Climate impact lab report said the estimates are based on temperature–mortality relationships and seasonal temperature forecasts from the European Centre for Medium-Range Weather Forecasts’ SEAS5 system. The Lab says it applied those relationships, which account for differences in local climate, vulnerability and adaptive capacity across 24,378 regions, to the forecasts. It says the full methodology will appear in an upcoming peer-reviewed journal, so the analysis has not yet been through that process.
Counting deaths from extreme heat is considerably harder than counting deaths from an accident or an infectious disease.
Part of the difficulty lies in how deaths are recorded. Heat may not appear as the immediate cause of death on a death certificate. A person exposed to extreme temperatures may die from cardiovascular disease, respiratory illness, kidney failure or another complication, making it difficult to establish the role heat played.
When temperatures rise sharply, hospitals may see more patients with dehydration, heatstroke and other heat-related illnesses. But extreme heat can also worsen existing medical conditions, and deaths from those conditions may not be recorded as heat-related.
This creates a gap between observed deaths and excess mortality: the number of deaths above what would normally be expected in a given period.
In India, that gap starts with how deaths are counted. According to an analysis by Rakesh Dubbudu on India Together, the country has no single authority, definition or process for a heat-related death. The National Disaster Management Authority counts deaths tied to declared heatwaves, the National Crime Records Bureau relies on police registers, and the health ministry counts clinically suspected heatstroke. For 2000–2020, the crime records bureau’s total exceeded 20,600, the disaster authority’s was about 17,700 and the IMD’s about 10,500. The Associated Press reported in 2024 that for 2020 the crime records bureau recorded 530 heatstroke deaths while the disaster authority reported four.
The wider system has its own limits. India’s civil registration system recorded 86.6 lakh deaths in 2023, a registration level of 97.2 per cent, but medical certification of the cause of death is far less complete, and heatstroke is hard to certify after death, especially in rural areas where post-mortems are rare.
Beyond the Numbers
The projection of thousands of additional deaths is therefore more than a statistical matter. It raises a larger question: whether India’s public-health and mortality surveillance systems can keep pace with a changing climate.
Michael Greenstone, a co-founder of the Climate Impact Lab and the Milton Friedman Distinguished Service Professor in Economics at the University of Chicago, said the report allows decision-makers to see ‘exactly where emergency actions can be taken now’ to save tens of thousands of lives in the coming months.
Co-author Tamma Carleton, the Lab’s faculty head of research and an assistant professor at the University of California, Berkeley, said that better-targeted emergency efforts can save many lives this year, but that resources must also be mobilised now to design, deploy and evaluate the planning tools that will save lives in the years ahead.
The Lab argues that targeted action could avoid tens of thousands of deaths. It points to early-warning systems and heat action plans, cooling centres, protections for outdoor workers, expanded health-system capacity, more accurate temperature forecasting and wider access to cooling technologies, while noting that many of these measures have been evaluated only in specific geographies.
As climate change raises the frequency and intensity of extreme heat in many regions, the ability to measure its human cost will matter more.
The question is no longer only how hot India is becoming. It is also whether the country’s data systems can tell us how many lives that heat is costing.
Delhi’s cooler weather signals the approach of the winter pollution season, when weak winds and temperature inversions can trap pollutants near the ground.
A street sweeper clears dust from a hazy road, highlighting the everyday work carried out amid poor visibility and polluted urban air. Representational image. Image credit: Rohit Sharma/Pexels
Delhi has had a taste of cooler weather earlier than usual. On Sunday, the capital recorded a minimum temperature of 21°C at Safdarjung, its lowest September minimum in 18 years. Conversations to tackle winter pollution are also surfacing along with it. Rain and northerly winds kept the air relatively clean too, with the 4 pm AQI at 53.
But that clean-air window may not last. As the southwest monsoon retreats and winter approaches, Delhi is entering the season when pollution can begin to linger in the air for longer. The government is already preparing for it.
On Monday, Union Environment Minister Bhupender Yadav met Delhi Chief Minister Rekha Gupta and senior officials to review preparations for the winter pollution season. The measures include restrictions on older vehicles entering Delhi, “No PUCC, No Fuel” checks, higher parking charges, staggered office timings and work-from-home arrangements. Construction and demolition will also face tighter restrictions during the winter months.
Air Stops Moving
Delhi’s winter pollution is not simply a result of colder temperatures. The problem begins when cold weather changes how the atmosphere behaves. During winter, winds can become weaker and the layer of air in which pollutants normally mix can become shallower. Pollution from vehicles, industries, construction and other sources then has less space to disperse.
Hazy conditions over a densely built city illustrate how weaker winds and shallow atmospheric mixing can allow pollution to linger closer to the ground during winter. Image credit: Berna/Pexels
A temperature inversion can make this worse. Cold air stays close to the ground while warmer air sits above it, forming a kind of lid that prevents pollutants from rising and spreading. For people on the ground, the result is familiar: hazier skies, poorer visibility and air that can remain polluted for days.
What Changes After Monsoon
The monsoon gives Delhi some natural help in clearing the air. Rain removes particles from the atmosphere, while stronger winds help disperse emissions. Once the rains withdraw, that help diminishes. If winds are weak and the atmosphere becomes stagnant, pollution can begin to build up.
And Delhi does not produce all of that pollution on its own. Emissions from traffic, industries, construction, road dust and waste burning within the city mix with pollution transported from neighbouring areas. Agricultural fires in northern India can add to the particulate load during parts of the post-monsoon season.
Why the Recent Cold Matters
In December 2025, falling temperatures, dense fog and shallow atmospheric mixing accompanied a deterioration in air quality. On December 18, the maximum temperature was 20.1°C while the city’s 24-hour AQI reached 373.
That is why winter pollution is partly a weather story and partly an emissions story. As winter sets in, the amount of pollution released by the city and surrounding region matters. So does what happens to that pollution once it enters the atmosphere.
“Climate Justice” rises above the crowd as countries on the frontlines demand greater action and support. Representational image. Image credit: Jacoblund
Nepal contributes less than 0.1% of global greenhouse gas emissions, yet catastrophic floods have killed more than 1,400 people, left thousands missing and caused damage estimated at around 10% of the country’s GDP.
For Prime Minister Balendra Shah, that contrast captures the climate justice challenge facing vulnerable countries. Addressing the United Nations General Assembly on Thursday, Shah described the Bhotekoshi-Trishuli disaster in northern Nepal as a “Himalayan Tsunami” and urged the international community to respond to climate disasters with greater financial support and stronger regional cooperation.
“The Bhotekoshi-Trishuli disaster was not just a local tragedy, it was a warning to the world,” Shah said.
Low-emitting Country Facing a High Climate Cost
Nepal’s contribution to global warming is small, but its exposure to climate hazards is high. Shah said the country is repeatedly forced to rebuild infrastructure and restore livelihoods after disasters, often relying on borrowing to finance recovery.
The UN has also highlighted this imbalance. UN Resident Coordinator in Nepal Lila Pieters Yahia said Nepal’s experience demonstrates the losses faced by countries that have contributed little to climate change.
Nepal has sought support from the Loss and Damage Fund, which was created to help vulnerable developing countries respond to climate impacts that cannot be avoided through adaptation alone. Its request was under consideration, according to the UN. The immediate funding gap remains significant. A UN-backed flash appeal sought 49.6 million dollars to assist about 84,000 people affected by the floods. By September 9, only 22 million dollars had been received.
For Shah, this is why climate justice has to translate into accessible finance. “Climate Justice cannot just remain a beautiful phrase in a United Nations document,” he said.
The Himalayan Risk
Shah also connected the floods to growing risks in the Himalayan environment. He pointed to melting permafrost and unstable mountain slopes, which can increase the risks of landslides, avalanches and floods. These hazards can also cross national boundaries through shared river systems.
Prime Minister Balendra Shah of Nepal addresses the General Debate of the UN General Assembly’s 81st session. Image credit: UN Photo/Loey Felipe
“Climate change does not recognize borders,” he said. “Glaciers and floods do not travel with a visa stamped on passports.” The UN has reported extensive damage to roads, schools, power systems and water infrastructure in the affected areas. It has also warned that recovery will require resilient infrastructure and livelihoods rather than simply replacing what was destroyed.
What Nepal Wants
Shah proposed a Himalayan Climate Resilience Mechanism involving Nepal, India and China. The proposed framework would share satellite data and technical expertise, monitor dangerous glacial lakes, strengthen early-warning systems and coordinate disaster assistance across borders.
He also called for greater access to grant-based climate finance, arguing that existing international mechanisms remain inadequate for countries facing repeated climate-related losses. “When the house is burning, we do not ask the family to complete fifty forms. We act,” Shah said.
The proposal comes as Nepal continues to deal with the immediate aftermath of the floods. The UN has released 2.5 million dollars through its Central Emergency Response Fund and has coordinated assistance covering food, shelter, health, water and sanitation, education and protection.
The UN Response
The UN’s response has gone beyond emergency relief. UN Secretary-General António Guterres met Shah in New York and expressed condolences over the deaths and destruction. Their discussions included relocating people living along vulnerable riverbanks, green reconstruction and the risk of glacial lake outburst floods.
The UN has also publicly backed the broader principle behind Nepal’s climate-justice appeal, while supporting the country’s recovery from the floods. That leaves a larger question for the international climate system: whether countries facing severe climate impacts can access sufficient funding to recover and prepare without taking on deeper debt.
For Nepal, the flood has turned that question into an immediate one. Shah ended his address by returning to the warning from the Himalayas. “And when the next warning comes from the rooftop of the world: Let us be ready to hear it, and ready to act.”