The northern summer of 2026 has been one of fire, floods and glacier collapse. It has also been one of a record number of commercial flights in a single day, and the longest flight in civil aviation history. These events are connected.
Transcript
It has been a summer that the world will not quickly forget. Images from the forests of south-west France to the floodplains of Bangladesh, from the mud-brick villages of eastern Afghanistan to the high glaciers on the Nepal-Tibet border, the northern hemisphere summer of 2026 has delivered a devastating sequence of climate disasters. It has surely left no serious observer in any doubt about what is driving these climate events.
In late July, firefighters in France and Spain were fighting for the lives and livelihoods of hundreds of thousands of people — against wildfires of a scale and ferocity that even the most experienced fire fighters described as unprecedented.
In Spain, a fire in the mountainous terrain to the west of Madrid, became the largest on record, burning through 50,000 hectares — around 125,000 acres of forest and farmland. Combined with two separate fires to the north-west, the total area destroyed near Madrid alone reached 70,000 hectares. Spain’s government noted that the 172,000 hectares of forested land lost across the country by late July was six times the equivalent figure for 2021.
Spain’s prime minister Pedro Sánchez stated that the wildfires were not inevitable. They were the latest manifestation of a climate emergency that is making heatwaves more frequent, land more vulnerable and wildfires more destructive.
In France, the wildfire in the forests south of Bordeaux —burned through 42,000 hectares, making it one of the biggest devastations of land in France since the Second World War. The mayor of Bordeaux described preparing for the possibility of mass evacuations as the fire advanced to within 15km of the city. French president Emmanuel Macron visited the region and issued dire warnings. The EU’s wildfire monitoring system described the summer of 2026 as a record-breaking year for burned land in Europe.
The science connecting these fires to climate change is clear. A series of heatwaves — including record-breaking temperatures that scientists said would have been impossible without human-caused warming — had dried out soils and created tinder-dry vegetation across southern Europe. Temperatures in western Europe on 28 July reached 40 degrees Celsius or above across Spain and parts of France. Italy was preparing for its fourth heatwave of the year. Smoke from the French fires caused what health authorities described as a marked deterioration in air quality across extensive parts of the country. Elderly people, pregnant women, and those with respiratory conditions were urged to stay indoors, wear masks, and avoid outdoor physical activities.
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While Europe burned, much of Asia was drowning. The scale of what the Guardian described as an unprecedented deluge across the region in late July 2026 is difficult to fully convey. From Afghanistan to Taiwan, and countries in between that are among the world’s most climate-vulnerable, were experiencing rainfall events of a magnitude that their infrastructure was never designed to withstand. In Eastern Afghanistan torrential rains and flash floods caused widespread destruction, loss of life, destroyed livelihoods and loss of property.
China saw over 600 rivers rise above warning levels — a 35% jump from the five-year average for the same period. Typhoon Noul, the strongest to make landfall in China this year, forced the evacuation of more than 890,000 people in Guangdong province alone. Taiwan’s capital Taipei recorded its highest monthly rainfall in over a century.
The climate science explains that a warmer atmosphere holds more water vapour. When it rains, it rains harder. Hotter conditions cause air to rise faster, driving more intense thunderstorms. As Richard Betts of the UK Met Office explains – more intense rainfall is an expected consequence of heating the planet by burning fossil fuels.
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Perhaps the most shocking event of this summer happened last week on a high Himalayan glacier on the border between Nepal and China. On the morning of 27 August 2026, a landslide of ice and rock sent a torrent of mud, water and debris cascading down the Trishuli River valley. Water levels on the river rose by nine metres in thirty minutes. Homes, roads, bridges and power plants were swept away. Hundreds of people died. Thousands are missing.
The US Geological Survey confirmed that a glacial collapse — that actually registered as a magnitude 5.2 seismic event — caused the flash flooding. Satellite imagery showed that a 0.2 square kilometre chunk of ice had collapsed approximately 1.2 kilometres vertically, crashing from 5,200 metres onto the valley floor 1,200 metres below.
The Himalayas are warming at twice the rate of the global average. Nepal’s mountains have lost close to a third of their ice in just over thirty years. Himalayan glaciers retreated 65% faster between 2011 and 2020 than in the previous decade. This disaster was caused by the Himalayan cryosphere responding as expected to a warming planet — with devastating consequences for the people living in the valleys below.
None of these events happened in isolation. They happened simultaneously, across multiple continents, while the scientific and policy frameworks designed to respond to climate change continue to lag far behind the pace of what is unfolding.
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All of this is, of course, connected to sustainable tourism for reasons that have been separately reported in the media in recent weeks. On 23 July 2026 — the same week that wildfires were raging across southern Europe and floodwaters were rising across Asia — the global aviation industry set a record of its own. Flight tracking service Flightradar24 registered 153,359 commercial flights in a single 24-hour period – the highest number ever recorded. It beat the previous record, set on 13 July 2023, by more than 16,000 flights. When cargo, military, and private aviation were added, the total on that day reached 287,364 — the second-busiest day ever for all aviation combined.
The aviation industry celebrated this as a milestone. For an industry that was brought to its knees by the pandemic, for airlines that mothballed their fleets and cut workforces, and airports that were largely inactive for much of two years during the pandemic, a return to record-breaking demand represents a spectacular recovery.
But we cannot ignore what it means for the global climate. On the same day that over a quarter of a million flights took place, the connections between aviation, carbon emissions, and climate breakdown could not have been more obvious.
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Research published in Nature Communications has confirmed that aviation is the dominant driver of tourism-related emissions, due to the high per-passenger emissions intensity of flying and the sustained growth in international air travel (Sun et al., 2024). So when we talk of over 153,000 commercial flights in a single day – that represents not only tourist aeromobility on an unprecedented scale. Every one of those flights burns jet fuel; and – therefore – every one produces carbon dioxide, water vapour, and nitrogen oxides at altitude — all of which contribute to warming.
The record was driven, as always, by the peak of the northern hemisphere summer travel season. The last week of July is consistently the busiest week of the year for commercial aviation. Leisure travel — people on holiday, visiting family, experiencing other cultures — is the engine that drivers global tourism.
Aviation growth is driven by hundreds of millions of individual decisions, mostly by people who are not thinking about climate change when they book a flight, and who are not, individually, doing anything wrong. The desire to travel — to see family, to experience other cultures, to rest, to learn — is not a moral failing.
But at the aggregate level, those individual decisions underpin a system that is incompatible with the global climate warming trajectory. The UNEP’s 2024 global emissions report found there is currently no credible pathway to achieve the Paris Agreement’s 1.5 degree target. And aviation is one of the sectors where the gap between what is needed and what is happening is widest. ICAO’s net-zero 2050 goal depends on a combination of demand reductions that are not happening and technological breakthroughs that do not yet exist. Sustainable aviation fuels face serious land-use, biodiversity, and energy-opportunity-cost concerns. Carbon offsetting has been repeatedly shown to fail to deliver real reductions while enabling continued growth.
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The contradiction between aviation and climate change is the subject of a paper published this year in the Journal of Travel Research. The paper is titled ‘Beyond the Rhetoric of “Sustainable Aviation”: A Counterfactual Confrontation’ (Gössling et al., 2026). It addresses a simple question: when the aviation industry says it is becoming sustainable, what exactly is it claiming, and does the evidence support those claims?
The paper presents an analysis of 211 documents — including airline websites, sustainability reports, and statements from manufacturers and industry bodies including the International Air Transport Association, the International Civil Aviation Organisation, Airbus, Boeing, and the Air Transport Action Group. The sample covered fourteen airlines, chosen both for scale — the leading international and domestic carriers by passenger kilometres — and for sustainability profile, including airlines ranked highly on independent sustainability rankings.
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The analysis identified seven narratives that recur across the industry’s communications. Airlines and airline organisations claim awareness, leadership, and commitment to net zero. They consistently emphasise that aviation accounts for only a small share of global emissions. They point to efficiency gains as evidence of progress on decarbonisation. They emphasise the promise of future solutions: sustainable aviation fuels, hydrogen, and electric propulsion. They highlight the sector’s socio-economic benefits, from connectivity to poverty alleviation. They argue that continued growth is necessary to fund the transition, and that taxation would only undermine and delay the transition to net zero aviation. And they refer to insurmountable barriers — namely cost and technology readiness — that place responsibility for delay outside the industry’s control.
Four of the seven narratives extend a pattern of recurring ‘technology myths’ — the promise of breakthrough technologies that are always imminent and never quite arrive. But the paper also
explores in detail the rhetorical strategies used by the airline industry to sustain its narratives. The authors use the term ‘future soothing’ to describe the aviation industry’s rhetorical strategy to continually project technological breakthroughs onto a perpetually deferred future, to ease public concern in the present and therefore avoid requiring any change to current trajectories. The authors situate this within a wider body of research on the discourses of climate delay, in which commitment to long-term goals substitutes for immediate structural change.
The upshot of this is a ‘cycle of blame’. Travellers wait for airlines or governments to act. Governments emphasise consumer choice and industry innovation. Airlines point to consumer demand and immature technology, and offer carbon offsetting in place of emissions reductions. Each actor’s inaction is self-perpetuating as long as the other two actors also remain inactive.
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Coinciding with all of this has been another noteworthy event for sustainable tourism in recent weeks. On 28 July — in the middle of that busiest week for the aviation industry — a Qantas Airbus A350 landed in Toulouse in France after a flight from Melbourne that lasted 24 hours and 24 minutes.
The flight was part of Qantas’s ‘Project Sunrise’ programme. The specially adapted Airbus A350 carried an extra fuel tank to cover a range of 23,075 kilometres — 14,338 miles — over the Pacific, North America and the Atlantic Ocean without stopping, before landing at the aircraft’s factory in Toulouse. It was the second-most-tracked flight in Flightradar24’s history, behind only the 2022 flight carrying Queen Elizabeth II’s coffin, with more than 3.6 million people following its progress.
The purpose of this flight is commercial. Qantas has ordered twelve modified A350 aircraft to fly nonstop between Australia’s east coast and London in around twenty hours. The first aircraft, seating 238 passengers and carrying 20,000 litres of fuel, is due for delivery in April 2027, with daily nonstop Sydney-to-London services planned from October 2027. Qantas has framed the flight, and the wider ‘Project Sunrise’ programme, as a genuine engineering achievement — which, in one sense, it is.
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A different interpretation of the flight was presented on LinkedIn by Katie Thompson, a former commercial pilot and founder of a UK-registered aviation and climate education charity.
She made two important points. First, in terms of seating configuration, the A350 normally seats between 350 and 410, and up to 480 passengers. Qantas’s ‘Project Sunrise’ aircraft carries only 238 passengers — a configuration the airline markets as the ‘lowest seat density of any A350.’ The reality is that this aircraft flies barely half full by design.
Her second point concerns how that translates into emissions per passenger. Fewer people sharing the same large fuel burn means each passenger’s share of the flight’s carbon is high. Only 140 of the aircraft’s 238 seats are economy. Thompson also questions the standard multipliers used to weight premium-class emissions — commonly five times an economy seat, a figure she notes predates today’s private suites — against the World Bank’s estimate of up to nine times, and her own view that the true figure is higher again once floor space, wider aisles, dedicated toilets, higher crew ratios, and premium catering are taken into account.
Katie Thompson argues that in a carbon constrained world it is unacceptable that an aircraft built to carry hundreds of people is used in this way. In her words:
“We’re being sold this as progress. It’s closer to the opposite: taking one of the most capable aircraft ever built and using it to carry as few people as possible, as far as possible, just to skip a two-hour stopover. From an airline that has promised net zero by 2050”.
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This northern summer has had fires, floods, and glacier collapse, alongside a new record day of commercial flying. It has also featured a ‘Project Sunrise’ Qantas flight that has provided a case example of ‘future soothing’: a headline about an engineering feat and progress on commercial aircraft range, that fails to disclose who flies, how much carbon that costs, and who bears the consequences. This summer’s climate disasters, and this flight do deliver a warning to those willing to recognise it. What happens next depends on whether the industry, its regulators, and passengers choose to heed it.
References:
Chrisafis, A., Giuffrida, A. & Rankin, J. (2026, 28 July). France and Spain race to contain huge wildfires before fresh heatwave begins. The Guardian. https://www.theguardian.com/world/2026/jul/27/france-and-spain-race-to-contain-huge-wildfires-before-fresh-heatwave-begins
Farrer, M., & agencies. (2026, 29 July). Qantas plane flies for more than 24 hours in record-breaking flight. The Guardian. https://www.theguardian.com/business/2026/jul/28/qantas-plane-flies-for-more-than-24-hours-in-record-breaking-flight
Gössling, S., Hopkins, D., Schweiggart, N., Cohen, S., Cocolas, N., & Higham, J.E.S. (2026). Beyond the rhetoric of “sustainable aviation”: A counterfactual confrontation. Journal of Travel Research. https://doi.org/10.1177/00472875251411867
Hardiman, J. (2026, 27 July). Over 150,000 flights: airlines just flew the busiest day in recorded history. Simple Flying. https://simpleflying.com/over-150000-flights-airlines-busiest-day-recorded-history/
Lu, D. (2026, 28 August). What caused the catastrophic flood in Nepal and Tibet — and how does a glacier collapse? The Guardian. https://www.theguardian.com/world/2026/aug/27/what-caused-the-catastrophic-flash-flood-in-nepal-and-tibet-and-how-does-a-glacier-collapse
May, N. & Watts, J. (2026, 28 July). ‘We have lost everything’: extreme rainfall across Asia brings flash floods and typhoons. The Guardian. https://www.theguardian.com/environment/2026/jul/28/extreme-rainfall-asia-flash-floods-typhoons-climate-change
Sun, Y.Y., Faturay, F., Lenzen, M., Gössling, S. & Higham, J.E.S. (2024). Drivers of global tourism carbon emissions. Nature Communications, 15(1), 10384. DOI: https://www.nature.com/articles/s41467-024-54582-7
Thompson, K. (2026, 29 July). [LinkedIn post on Qantas’s Project Sunrise flight]. LinkedIn.
Van Puymbroeck, C. (2026, 28 July). Global aviation records busiest-ever day with 153,359 commercial flights. Travel Tomorrow. https://traveltomorrow.com/global-aviation-records-busiest-ever-day-with-153359-commercial-flights/
