This month marks 10 years since the UK recorded its first named storm.
Storm Abigail struck in November 2015, bringing high winds, lightning and snow and causing power cuts and school closures in northern Scotland.
In the decade that has passed, storm naming has become a key part of how the Met Office warns the public about impending storms.
Storm naming is a public safety tool that makes severe weather easier to remember, talk about and follow.
The success of the scheme offers lessons for how clear communication can help communities prepare, adapt and build resilience in a changing climate.
Here, we look back at a decade of naming storms in the UK and some of the most notable events.
Storms in the UK
Storms in the UK typically take place during the autumn and winter months and last for between two and three days.
The number of named storms varies from year to year. Some storm seasons – for example, 2023–24 – are exceptionally active, while others are much quieter.
The UK owes its stormy climate in large part due to the jet stream – fast-moving winds that blow from west to east high in the atmosphere and push low-pressure weather systems across the Atlantic.
These low-pressure systems can bring heavy rain and strong winds to the UK, which, in turn, causes storms.
Storms in the UK can cause serious damage, felling trees, destroying infrastructure and causing travel disruptions.
Some have resulted in widespread flooding – and others, tragically, in loss of life.
Over the last decade, the UK has seen a number of storms with extreme wind speeds and heavy rainfall.
The table below sets out a list of records set by storms between November 2015 and October 2025.
| Maximum hourly gust speeds | Storm Eunice, 2022 | 122 miles per hour (mph) |
| Highest daily rainfall total | Storm Desmond, 2015 | 264.4mm |
| Lowest mean sea level pressure | Storm Éowyn, 2025 | 941.9 hectopascals (hPa) |
UK storm records for the period November 2015–October 2025. Source: Met Office
Storm naming
Storm naming was introduced in the UK and Ireland at the start of the 2015 storm season.
Launched by the Met Office and Ireland’s weather service, Met Éireann, Dutch weather service the Royal Netherlands Meteorological Institute (KNMI) joined the storm-naming scheme in 2019.
This collaboration between the UK, Ireland and Netherlands is one of three storm-naming groups in Europe. Each group releases a new alphabetical list of storm names in September.
The graphic below highlights the storm names picked by the Western European storm-naming group for 2025-26.
Not all storms are named. A storm will be named if the Met Office anticipates it having potential to cause disruption or damage.
This is often linked to whether strong winds are expected, but impacts caused by other weather types – for instance, heavy rain, hail or snow – are also considered.
Once named, the storm is referred to consistently by weather services and other authorities in Ireland, Netherlands and the UK.
Storm naming was introduced to improve communication of the weather forecast to the public and help people stay safe during severe weather.
Using a single, authoritative name for a storm allows government and media outlets to deliver a consistent message about approaching severe weather.
In this way, the public will be better placed to keep themselves, their homes and businesses safe.
There have typically been around half a dozen named storms each year since November 2015, although this varies on a year-to-year basis.
The 2023-24 storm season saw the most named storms to date. In August 2024, Storm Lillian became the 12th named storm of that season.
Below is a table of all the storms that have been named since 2015.
Storms named between November 2015 and October 2025. Source: Met Office.
Notable named storms
While every year since the scheme began has seen storms strong enough to be named, some storms have been particularly significant.
Storm Desmond, December 2015
Storm Desmond brought extreme rainfall to north-west England. The weather station in Honister Pass in Cumbria recorded 34.1cm of rainfall in just 24 hours in a new UK record. Another record was set when 405mm of rain fell at Thirlmere in Cumbria over two consecutive days.
The subsequent floods affected thousands of homes and businesses across Cumbria and other parts of northern England, sweeping away several bridges and cutting road and rail links.
Storm Desmond led to the government launching the National Flood Resilience Review.
Storm Arwen, November 2021
Storm Arwen is an example of how the damages caused by a storm depends on more than its overall strength. A storm’s location, duration and wind direction also plays a role.
This storm occurred after an area of pressure in the North Sea drove very strong northerly winds across north-eastern parts of the UK. Winds gusted at up to 98mph at Brizlee Wood in Northumberland.
The unusual wind direction of Storm Arwen resulted in the felling of thousands of trees and left more than a million homes without power. Parts of the Pennines also saw significant disruption from lying snow.
Storms, like Arwen, that have a wind direction different to the prevailing south-westerly direction are less frequent, but are nevertheless a key part of the UK’s climate.
Storm Eunice, February 2022
In February 2022, three named storms affected the UK within the space of a week. The second of these storms was Storm Eunice.
Storms in close succession can cause particular problems because clean-up efforts can be hampered by further severe weather.
Storm Eunice was the most severe and damaging storm to affect England and Wales since February 2014. Gusts reached 122mph at Needles on the Isle of Wight – the highest on record for England at a low-level station.
The storm caused deaths, widespread damage to buildings and major travel disruption, including the temporary closure of the Port of Dover.
Storm Babet, October 2023
Storm Babet was notable for prolonged and intense rainfall which led to severe flooding, evacuations and sadly, deaths. In eastern Scotland, particularly in the county of Angus, rainfall totals reached 150-200mm, with some areas experiencing their wettest day on record since 1891.
A key factor with this storm was its unusual track, or path. The storm moved south to north, picking up additional moisture as it crossed the Bay of Biscay. A high-pressure “blocking” weather system over Scandinavia prevented Babet clearing the UK eastwards into the North Sea. As a result, high wind speeds were sustained across north-east England and much of Scotland for a prolonged period.
Storm Éowyn, January 2025
Storm Éowyn was the UK’s most powerful windstorm in more than decade, with the brunt of impacts felt in Northern Ireland and Scotland’s populous Central Belt.
Gusts exceeded 90mph in Northern Ireland – where this was the most severe wind storm since 1998 – while a 100mph gust was recorded at Drumalbin in Lanarkshire.
Roads were closed, flights, ferries and trains were cancelled and more than a million homes were reported to be without power at the peak of the storm. Scotland’s national botanical collection at the Royal Botanic Garden in Edinburgh saw several dozen felled or badly damaged trees.
Storm Éowyn’s intensity and geographic reach made it a standout event in recent years.
The timeline below shows how the Met Office worked with Met Éireann and KNMI to alert the public about Storm Éowyn.
Climate change and storms
There is no evidence of positive or negative trends in windstorm number or intensity in the UK’s recent climate.
Trends in windstorm frequency are difficult to detect, because numbers vary year-to-year and decade-to-decade.
Most climate projections indicate that winter windstorms will increase slightly in number and intensity over the UK, including disproportionately more severe storms. However, scientists have “medium confidence” in these projections – because a few climate models indicate differently.
This uncertainty highlights the need for ongoing research into how climate change may influence the severity and frequency of windstorms in northern Europe.
On the other hand, scientists are confident that climate change is making rainfall during storms more intense.
A 2024 attribution study involving Met Office scientists showed that climate change has made rainfall during storms more intense through autumn and winter in the UK. The researchers noted that this trend is set to increase as the planet warms.
Recent increases in flooding in the UK have also been linked to climate change.
Other research, meanwhile, has found that sea level rise caused by climate change will worsen storm surges and high waves during windstorms.
The continuing unpredictability of UK storms – combined with projections of increased rainfall and heightened coastal damage under climate change – means that being prepared for, and adapting to, the future weather is crucial.
The post Met Office: Ten years of naming UK storms to warn the public appeared first on Carbon Brief.
Met Office: Ten years of naming UK storms to warn the public
After a four-year set up period, a fund to help vulnerable countries respond to climate impacts is facing criticism from Nigeria’s environment minister over delays in delivering aid, while its chief executive says the first disbursements will be made by the end of the year.
At an event at London Climate Action Week on Tuesday, Nigerian environment minister Balarabe Abbas Lawal said that whenever he goes to UN climate summits “we talk about loss and damage funds, and all these years nothing has been translated into action”.
He added that the fund currently “looks like a mirage”, and said that “a number of our governments are beginning to believe that COPs are just talk shops”.
The idea of addressing the loss and damage caused by climate change was first discussed at COP13 in 2007. A fund was agreed to at COP27 in 2022 to help vulnerable countries respond to climate emergencies, and it was officially set up the next year. Since then, the fund’s board and management have been working out the details of how it will work.
Ibrahima Cheikh Diong, a banker from Senegal, was appointed CEO in 2024. Referring to Lawal’s frustration, Diong told Climate Home News on Thursday that the fund is “moving according to plan”.
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A call for funding requests, launched at COP30, closed on June 15. Projects – including those to strengthen responses to floods in Bangladesh and Lagos and improve water infrastructure in Jamaica – bid for a combined $250 million. Diong said that the fund’s board would decide which projects to fund at its next board meeting in the Philippines, starting on July 8.
“We hope that by the end of the year we can begin then to make the decision and see the funds going, so hopefully the frustration for Nigeria will be reduced”, he said, adding that “every time wasted, when it comes to loss and damage, is lives not saved”.
Funding concerns
While climate campaigners have called for tens of billion of dollars of funding a year, wealthy nations have promised the fund $822 million and delivered just $449 million – with countries like Italy, France and Luxembourg failing to pay in full.
A briefing paper prepared by the fund’s secretariat earlier this year warned that, unless fresh contributions are secured, the fund could run out of resources by the end of 2027.
Diong said that the fund intends to hold a replenishment round, where governments promise money, next year. In the meantime, as public finance “is being very difficult to mobilise”, the fund is looking at other sources of funding.
“What exactly that source of funding will be, we have to look at the potential, look at the feasibility and so on”, he said, so the fund can keep up with demand.
In an open letter in April, a group of climate campaigners called for developed countries to increase contributions to the Loss and Damage fund and introduce taxes on fossil fuel companies, financial transactions, luxury air travel and wealth to help finance it.
“Rich countries must be held strictly accountable for the devastation they have caused,” said Climate Action Network International head Tasneem Essop. “Their failure to fulfill their responsibility to the loss and damage fund is not just an oversight; it is a shameful betrayal of humanity.”
The post As Nigeria rails at loss and damage “mirage”, fund boss assures money is coming appeared first on Climate Home News.
As Nigeria rails at loss and damage “mirage”, fund boss assures money is coming
Climate Change
China Briefing 25 June 2026: Five-year plans passed | Critical-mineral tensions | Industrial decarbonisation plan
Welcome to Carbon Brief’s China Briefing.
China Briefing handpicks and explains the most important climate and energy stories from China over the past fortnight. Subscribe for free here.
Key developments
New five-year plans
GENERATION TARGET: China today released its 15th five-year plan for building a “new-type energy system”, according to finance news outlet Cailianshe. It said the plan covered topics including energy sources, power-market reform and China’s role in clean-energy supply chains and climate governance. The plan, published by the National Development and Reform Commission, stated that China will aim for clean energy to constitute 30% of power generation by 2030 – up from approximately 22% today. It also stated that wind and solar will become the “mainstay” of China’s power mix. The government will work to increase clean-energy consumption, such as by upgrading the grid to “accommodate” 900 gigawatts of distributed energy and promoting emerging solutions such as virtual power plants and hydrogen. The plan also urged the “strengthening” of coal’s role as a “bottom-line guarantee”.
IN THE WORKS: At a meeting on 11 June, China’s State Council approved the “15th five-year plan for building a beautiful China”, reported industry news outlet BJX News. The meeting readout noted the importance of “actively address[ing] climate change” and developing “green production and lifestyles”, it added. The next day, the Ministry of Ecology and Environment (MEE) approved a series of environment-related five-year plans, including the “15th five-year plan for a national response to climate change”, said business news outlet 21st Century Business Herald article. The full text of the plans is not yet available.
JOBS AND GOVERNANCE: A separate five-year plan on employment included calls to “unlock employment potential” by developing “new energy system” projects, according to current affairs outlet China News. The government also published a white paper on global governance that said the “general public truly feels that nations are taking action and that unity can overcome any obstacle” to address climate change, reported state news agency Xinhua. It added that the paper called on developed countries to “honor their commitments” on climate finance. Foreign minister Wang Yi said in a press conference that China aims to “innovate governance mechanisms” to address issues such as how countries can “achieve” a global low-carbon transition, Xinhua also reported.
Critical mineral barbs
REDUCE DEPENDENCIES: The Group of Seven (G7) major economies have stated that “no single country should supply more than 60% of their imports of rare earths”, reported Bloomberg, in “an effort to reduce their reliance on China”. The full communique, which does not mention China by name, said that diversifying supply chains was “urgen[t]”, due to “market concentration”, the “growing use of arbitrary trade restrictions” and the need to “reduce vulnerabilities”. In response, China’s foreign ministry urged the G7 to “stop disrupting the international trade order” with “self-made rules”.
EXPORTS BLOCKED: The Indonesian government’s new nickel production quotas and pricing rules could put $50bn of Chinese investment at risk, Chinese diplomats argued in a letter covered by the Financial Times. Lithium miners in Zimbabwe, including Chinese firms, are asking for more time to build local processing facilities ahead of a 2027 lithium concentrate export ban, said Reuters. Meanwhile, China restricted trade with two US rare-earth companies, in response to the US adding companies including CATL and BYD to a “blacklist”, said the Financial Times. China’s exports to Japan of rare earths used to make permanent magnets remain “negligible”, reported Reuters.
DIALOGUE URGED: EU member states have asked the European Commission to develop new trade instruments to deal with the “economic threat” posed by China, reported the Hong Kong-based South China Morning Post. Despite “combative rhetoric” ahead of the summit, the Financial Times reported that the 27 leaders opted for dialogue rather than immediate action to address “global macroeconomic imbalances”. Separately, the European Commission plans to impose tariffs on Chinese plug-in hybrid electric vehicles, reported German business newspaper Handelsblatt.
CLIMATE MINISTERIAL: The EU, China and Canada held a climate ministerial, in which Chinese environment minister Huang Runqiu said countries “must strengthen cooperation rather than retreat from it”, said Euronews. Climate outlet Tanpaifang reported that Huang also said COP31 should address “insufficient emission reduction efforts and financial support from developed countries”. According to a European Commission transcript, EU climate commissioner Wopke Hoekstra said: “We need to act for climate, but also for competitiveness and independence. We cannot afford to depend on third countries.”
Mandatory targets for energy users
NEW TARGETS: From August, the Chinese government will “set binding targets” for companies on how much low-carbon power and non-electric energy they must consume, said Bloomberg. It added that targets will be set for how much low-carbon power provinces must absorb into their grids. Provinces and “key energy-consuming industries” will see their uptake of clean energy monitored on a quarterly basis and be subject to annual assessments by the State Council, said industry news outlet International Energy Net.
END-USER PRESSURE: The announcement marks the first time that China has established targets for non-fossil energy consumption at the “end-user level”, reported economic news outlet Jiemian. It added that the previous system, which only covered power, placed the responsibility for absorbing renewable energy into the grid “primarily” onto local governments and power grid companies.
SUPPORTING THE MARKET: The new measures will “help address grid integration challenges and promote better utilisation of renewable energy”, an official at the National Energy Administration told reporters, according to Xinhua. The official said it would also help boost demand for other low-carbon industries, such as “green hydrogen, ammonia and methanol”. Liu Guobin, vice-president of the China Electric Power Planning and Engineering Institute said in an “explanation” posted on International Energy Net that the measures would also “convey clear…expectations to the market” for the long-term outlook for renewable energy, “guiding the rational allocation of investment”.
More China news
- BECALMED: China’s thermal power generation rose 2.1% year-on-year in May, as “lower wind speeds curbed renewable energy growth”, reported Reuters.
- TRUCK TARGET: The government issued a new plan for developing “new-energy heavy duty trucks (HDTs)” that aims to have sales of electric, hydrogen and other low-carbon HDTs account for 40% of new truck sales by 2030, said Xinhua.
- SUPERMASSIVE SYSTEM: China’s total power capacity reached 4,000 gigawatts in May, reported BJX News, larger than that of the US, EU, India, Russia and Japan combined. Coal’s share of the capacity mix fell to 32%, while the non-fossil share rose to 62%.
- EXPORT DRIVER: China’s exports of electric vehicles (EVs) rose 54% year-on-year in May to $10bn by value and lithium-battery exports “rose 37% to $8bn”, but solar cell exports fell 7% by value to $2bn, said Caixin. The thinktank Ember found that Chinese EV exports to south-east Asia, particularly Thailand and the Philippines, reached an “all-time high” of $1.2bn.
- ONGOING RISK: The heavy rainfall seen throughout June, as well as drought, is likely to continue during China’s flood season, said the Ministry of Emergency Management in comments covered by Jiemian.
- PROJECTION PUSHBACK: The China Energy Research Society’s Wang Weiquan described projections by BloombergNEF of China’s emissions reduction and share of coal in the power mix as “overly optimistic” and “even radical”, according to the state-run newspaper China Daily.
Spotlight
What is in China’s new three-year action plan for industry?
China has issued a new action plan for energy conservation and reducing carbon emissions across nine heavy industries.
In this issue, Carbon Brief examines how the plan will impact China’s industrial development and decarbonisation.
China will conduct an “intensive campaign for energy conservation and carbon reduction upgrades” across heavy industry between 2026 and 2028.
The plan targets nine key industries: steel; electrolytic aluminum; cement; flat glass; oil refining; ethylene; synthetic ammonia; methanol; and coal-fired power.
After 2028, it said that production capacity that does not meet efficiency standards will be phased out and that efforts will be broadened to other industries.
Combined, power and industry make up the vast majority of China’s emissions profile.
Emissions in some of these sectors – notably, steel and cement – have been falling. However, chemical-industry emissions have experienced double-digit growth.
China’s power sector, which generates the majority of its electricity through coal, is responsible for around 40% of the country’s total carbon dioxide (CO2) emissions.
Focused on efficiency
The plan outlined several measures for companies to take to reduce their energy use and emissions profile.
According to a Carbon Brief count, the majority are focused on energy efficiency, such as promoting high-efficiency industrial processes and upgrading energy-consuming equipment.
More than 70% of China’s steel, aluminium, cement and flat glass capacity does not meet energy efficiency benchmarks, said a government official in a Q&A published by the National Development and Reform Commission (NDRC).
Yang Zhou, senior advisor China at Agora Energiewende, told Carbon Brief that the policy will “pick the last lowest hanging fruit” in terms of eliminating low-efficiency capacity. After this, she said, the focus will turn to entering a “deep-water” phase of decarbonising industrial capacity, as well as making it more efficient.
Some of the measures that companies are encouraged to take in the plan do directly link to decarbonisation. These include developing “hydrogen metallurgy” and sourcing low-carbon materials and fuels, as well as increasing electrification and renewable power usage.
The coal-power industry should improve flexibility, decouple combined heat and power operations and integrate biomass and renewable energy into their operations, it said.
Coal plants are expected to reduce coal consumption per kilowatt-hour (kWh) of electricity by “at least five grams of standard coal” and carbon emissions per kWh by 10%-20%, if not more.
The document said that the share of coal-fired power capacity that meets energy efficiency benchmarks should improve by 15 percentage points by 2028. This rises to 20 percentage points for the other eight industries.
By 2028, according to the NDRC, the plan aims to cut energy use by more than 100m tonnes of standard coal per year and reduce CO2 emissions by more than 200m tonnes.
Supporting business
Companies will receive support from the central government, which will subsidise 20% of the total investment that “approved” projects require.
Provinces should “fully leverage” pricing mechanisms to encourage retrofitting, said the policy.
Local policymakers can now add a surcharge of up to 0.1 yuan ($0.15) per kWh to market-traded electricity prices for non-compliant producers – which finance outlet Caixin said was a “central” tool for enforcement.
The South China Morning Post quoted an unnamed analyst, however, saying the policy may not “deliver its intended effects”, as some industries still receive subsidised electricity from local governments.
Companies will also be able to use verified CO2 emission reductions from approved projects to “offset” emissions from “new, renovated or expanded” dual-high projects. For industries covered by China’s carbon market, this may be formalised in their emissions allowances.
The NDRC official said that support should be provided to “ensure they receive reasonable returns on their carbon emission allowances”.
The policy “seeks to strike a balance” between energy security and climate goals, rejecting the “radical thinking of ‘one-size-fits-all shutdowns and phase-outs’”, according to a widely-read commentary by Sprinting Power Worker, a “self-media” WeChat account.
“For industries such as coal power, steel and cement, a gradual capacity reduction is expected due to market forces,” said Yang. She added:
“For growing sectors like chemicals and non-ferrous metals, China’s strategy is to expand capacity, [albeit] increasingly concentrated, scaled-up and efficient. Continued decarbonisation will require large-scale deployment of solutions like electrification, green power-green hydrogen coupling and circular economy.”
Watch, read, listen
SULPHURIC SLOWDOWN: Rhodium Group published an analysis of how China’s efforts to restrict exports of sulphuric acid could impact global electrification efforts.
ARCTIC ACTIVITY: The Circumpolar podcast explored the variety of interests, including energy and the environment, driving China’s actions in the Arctic.
TRANSITION IN NUMBERS: Thinktank Agora Energiewende hosted a webinar on its new report, which outlined key trends in China’s energy transition.
CARBON TAX: The Center for Strategic and International Studies looked into how China is responding to the EU carbon border adjustment mechanism.
4.9%
The amount by which China’s oil consumption is expected to fall in 2026 compared to the year before, according to a report by a thinktank under oil giant PetroChina, covered by Reuters. It said the decline is due to the “pivot to new energy and high oil prices due to the Iran war”, according to the report.
New science
- Economically developed Chinese cities “transferred” 42% of their greenhouse gas emissions related to plug-in electric vehicles to less developed cities in 2020, “substantially increasing” the recipients’ climate mitigation costs | Nature Cities
- Renewable energy development “significantly reduces” urban-rural income inequality in Chinese cities | World Development
- Grain trading between Chinese provinces increased more than fivefold between 1980 and 2020 and production shifted northward, driving a more than 217% increase in “embodied nitrogen losses and greenhouse gas emissions” | Nature Food
Recently published on WeChat
China Briefing is written by Anika Patel, with contributions from Lekai Liu. It is edited by Simon Evans. Please send tips and feedback to china@carbonbrief.org
The post China Briefing 25 June 2026: Five-year plans passed | Critical-mineral tensions | Industrial decarbonisation plan appeared first on Carbon Brief.
Twice as many animals died due to heat stress en route to slaughterhouses during the UK’s record-hot summer in 2025 compared to 2024, according to new Carbon Brief analysis.
Government figures showed that nearly 6,600 animals – mostly chickens – died in transport as a result of the sweltering summer heat in England and Wales from June to August 2025.
This compared to 3,100 in summer 2024 and no official cases in summer 2023.
These figures were still below the more than 18,500 deaths recorded in the summer of 2022 when UK temperatures hit 40C for the first time, as previously reported by Carbon Brief.
The deaths are a “horrifying reminder of what happens when animals are treated as cargo”, said an animal-rights group spokesperson.
Detailed descriptions included in the data on the deaths highlighted thousands of animals dying amid heat stress, high humidity levels and long journeys.
Thousands of animals also died due to cold, wintry conditions, with more than 13,000 deaths recorded between December 2024 and February 2025 – almost double the previous winter.
Heat deaths
Carbon Brief has analysed recent years of “dead on arrival” data focused on livestock that died due to heat or cold stress en route to slaughterhouses.
The data was obtained through the UK Freedom of Information (FOI) Act from the Food Standards Agency (FSA), which is responsible for the compliance of slaughterhouses in England and Wales.
At least 1m chickens die in the UK each year while being transported to slaughterhouses due to suffocation, poor transport procedures and other issues, reported the Bureau of Investigative Journalism in 2018 .
Pigs, cows, sheep and other animals also die in this way in smaller numbers.
The new data showed that 6,595 animals died due to heat stress en route to abattoirs between June and August 2025, which was the warmest summer on record in the UK.
According to the Met Office, human-caused climate change made this summer heat 70 times more likely to occur.
Carbon Brief requested non-publicly accessible details of “dead on arrival cases” that were categorised as “suspected heat/cold stress”.
Each incident contained a detailed description written by a vet with supporting evidence about the condition of the animals, the transport conditions and the suspected cause of death. These are filed to the FSA.
The information showed that certain individual days had particularly high death tolls. Almost 1,000 chickens died in a number of incidents during a heatwave on 11 July 2025. Some chickens showed visible signs of heat stress, such as panting and immobility, the reports said.
On 12 August, amid more high temperatures, 2,154 chickens died in heat-stress incidents.
Body temperatures of some of the chickens that died on this day were as high as 46C.
A chicken will die if its body temperature exceeds 45C and it should ideally stay as close to 41C as possible, according to a 2005 document from the Department for Environment, Food & Rural Affairs (Defra).
The table below shows the total number of heat- and cold-related deaths of livestock in recent years, based on the data obtained through FOI.
The “dead on arrival” information covered every summer and winter since 2023, alongside the summer of 2022.
The figures were likely an underestimate of the total number of livestock deaths due to high or low temperatures, as they only included deaths with “suspected cold/heat stress” as a listed category.
However, the incident descriptions in many other deaths mentioned high and low temperatures as contributing factors, despite the ultimate cause of death not being labelled as such. These were not included in Carbon Brief’s tally.
The figures covered deaths in England and Wales. Scotland and Northern Ireland do not record the cause of deaths en route to slaughterhouses, so it is not possible to single out the cases linked to high or low temperatures.
Preventing deaths
These livestock deaths are a “horrifying reminder of what happens when animals are treated as cargo”, says Alex Harman, campaigns manager at animal rights group Animal Aid. He tells Carbon Brief:
“These 6,600 individuals [in summer 2025] did not just die, they suffered prolonged, agonising heat exhaustion inside metal containers – anyone experiencing the UK’s heatwave this week will be able to empathise.”
Climate change is “simply amplifying the violence already built into animal farming”, he says, adding that the only “compassionate, logical” solution is to “stop viewing animals as products and urgently transition to a plant-based food system”.
Pigs and chickens cannot sweat and face difficulties cooling down on very hot days.
Cramped or long journeys can exacerbate this, combined with high humidity levels, sometimes upwards of 80%, the livestock data showed.
Abigail Penny, the executive director of Animal Equality UK, tells Carbon Brief that “these same scenes of extreme animal suffering play out every summer and, if nothing is done, it’s only going to get worse”.
Workers transporting animals during extreme weather conditions are expected to put in place measures to protect them, according to UK government guidance.
These measures can include ensuring water and ventilation systems function properly on vehicles, avoiding travel during the hottest or coldest parts of the day and recognising signs of heat and cold stress in animals.
The FSA said that the number of “dead on arrival” incidents caused by cold and heat stress increased by more than 50% between April 2024 and March 2025 compared to the same period the year prior.
The FSA and Defra declined Carbon Brief’s request to comment on the new figures.
Cold deaths
Thousands of animals also die due to cold stress while travelling to slaughterhouses each year. Carbon Brief assessed data for these deaths in the winters of 2023-24 and 2024-25.
At least 13,057 livestock animals died due to cold weather conditions between December 2024 and February 2025. This is more than double the number – 6,981 – that died the previous winter.
On 6 February 2025 alone, 4,056 poultry deaths were reported due to cold weather impacts.
Some livestock also died due to cold conditions in the summer months.
For example, 326 animals died amid cold weather in the summer of 2023. No official heat-related deaths were recorded in that period, but a number of incidents referred to hot-weather conditions or heat stress as contributing factors.
Overall, 2023 was a very warm year in the UK, with soaring temperatures in June and September. At least 3,103 animals died from heat stress in September, the figures also showed.
Conditions were cooler and wetter in July and August, which may have contributed to the absence of heat-stress deaths.
Most cold deaths during warmer months occurred in the early hours of the morning or overnight when temperatures dropped, the FOI data shows.
On 28 August 2025, for example, 134 chickens died due to cold stress. The incident description outlined that the animals were “very wet”, dirty and had few feathers, which can reduce a chicken’s ability to hold warmth.
The animals were transported overnight to a slaughterhouse and “suffered distress and pain” because of the weather and other factors, the description noted.
The post Livestock heat deaths in transit doubled in UK record-hot summer of 2025 appeared first on Carbon Brief.
Livestock heat deaths in transit doubled in UK record-hot summer of 2025
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