At least 67 NHS hospital wards, departments and other sites across the UK have been forced to temporarily close or relocate due to weather-related flooding over the past five years, a Carbon Brief investigation reveals.
Maternity centres, surgical theatres, a neonatal intensive-care unit and even entire hospital buildings have been disrupted by heavy rainfall or encroaching floodwaters.
Carbon Brief submitted freedom-of-information (FOI) requests to 162 NHS trusts, which show that while many flood-related shutdowns were brief, some lasted for weeks or months.
In total, 148 trusts responded to these requests with reports of 67 flood-related shutdowns, giving detailed data for 30 incidents that resulted in a total of 3,000 days of closures.
Reports of flooding at NHS sites have been on the rise, according to NHS England data.
This comes as the UK experiences wetter winters, with periods of extreme rainfall that are increasingly linked to human-caused climate change.
These floods can exacerbate existing problems in a healthcare system that is already struggling with insufficient funding, old hospital buildings and a backlog of maintenance work.
Indeed, while there have been efforts to make UK hospitals more resilient to extreme weather, one expert tells Carbon Brief that such measures are difficult to implement when these institutions are struggling to keep their “heads above water”.
Rising floods
Floods pose a threat to people’s health, but they also threaten the UK’s healthcare infrastructure. Water can enter hospitals, paralyse ambulance services and damage equipment, placing strain on an already stretched NHS.
NHS records show that the number of flood incidents “caused by external weather events” in facilities across England has doubled since 2021, reaching nearly 400 in 2024-25.
Equivalent data is not available for Scotland, Wales and Northern Ireland, although there have been reports of floods disrupting services across the whole UK.
As global temperatures rise and the atmosphere holds more moisture, UK winters are getting wetter. Attribution studies show climate change has increased the severity of recent rainfall and flooding events – including Storm Eunice in 2022 and Storm Babet in 2023.
There is also a risk of increased flooding when heavy rain hits after periods of intense drought, of the kind seen in recent years.
Environment Agency modelling suggests that a rising share of medical facilities in England will be at risk of flooding due to climate change. It says the share of sites at risk will increase from a quarter in 2024 to a third by the middle of the century.
Despite this apparent threat facing the UK’s healthcare system, there is limited information about the extent to which these floods are already disrupting NHS services.
Closed services
To build a fuller picture of NHS-wide flooding, Carbon Brief sent FOI requests to 162 trusts and health boards – the organisations in charge of health services – across England, Scotland, Wales and Northern Ireland.
They were asked for details of wards, departments or services that had been temporarily or permanently closed due to weather-related flooding, such as river floods or heavy rainfall, between 2021-22 and the start of 2026.
In total, 148 of these bodies responded with details of 67 incidents in which weather-related floods have triggered closures. The map below shows where these incidents were located, from hospital wards in Scotland to an eye unit on the south coast of England.
The 67 flooding-related disruptions reported by NHS trusts and health boards is likely an underestimate. Many trusts told Carbon Brief they did not record such detailed information or that collating it would be too time-consuming.
Nevertheless, the results provide an insight into the kind of risks facing NHS services as weather gets more extreme.
Among the closures were 13 accident and emergency (A&E) departments, urgent treatment centres and minor injuries units. There were also 10 hospital wards, 10 surgical theatres, five maternity units and a neonatal intensive-care unit affected by flooding.
Many trusts did not provide information about how long each closure lasted. However, the 30 incidents where timespans were provided add up to the equivalent of more than 3,000 days – or eight years – of closures across NHS sites.
The infographic below provides a snapshot of some notable closures from the dataset.
The entire Buckland Hospital site in Dover closed for two days in 2025 amid “exceptional rainfall” and flash floods. People seeking radiology, maternity and urgent-care services were told not to visit over the weekend and various clinical services were delayed or cancelled.
The NHS declared a “major incident” in 2021 when flood waters “caused power outages impacting multiple areas” at Whipps Cross Hospital in north-east London – including its maternity service – for four days. Neighbouring hospitals also flooded.
Some closures lasted far longer. In Stroud General Hospital, a surgical theatre was closed for two weeks and an X-ray facility for around two months after storm water overflowed into the building in 2023.
Several NHS trusts stressed that the flooding incidents they reported were localised – often resulting from roof leaks exacerbated by heavy rain – and resulted in minimal disruption. Sometimes, as with a cardiology suite in Cannock Chase Hospital, the service was moved and the trust says patient care was not disrupted.
However, the responses also showed the breadth of damage such events can cause, including rainwater “pouring onto expensive equipment” and floods triggering the long-term relocation of services.
For example, Orchard Cottage, a site that provided care for adults with learning disabilities in Derbyshire, experienced major flooding during Storm Babet in 2023 and was permanently shut down as a result.
Adaptation needs
The UK Health Alliance on Climate Change, a group of UK health organisations, concluded in a report in 2025 that, with flood risks projected to grow, there is an “urgent need for adaptation measures” across the nation’s healthcare facilities.
Government advisors at the Climate Change Committee have highlighted the need for flood resilience in UK hospitals, including flood barriers, waterproofed electricals and built-in redundancy for critical areas, such as theatres, labs and IT equipment.
There have been various measures at both government and NHS level intended to improve the resilience of medical facilities to climate-related hazards.
The UK’s national adaptation programme sets out expectations for NHS England to “adapt NHS infrastructure to extreme weather events”. All trusts must have “green plans” in place, which require climate change to be factored into infrastructure decisions, for example, through the creation of drainage systems or green spaces.
Yet, as it stands, three-quarters of UK doctors say their workplaces are not prepared for the impact of extreme weather and nearly half of healthcare workers report that extreme weather has disrupted NHS services in the past five years.
Many hospitals have outdated infrastructure – often predating the founding of the NHS – which was not designed to cope with climate change. Prof Hugh Montgomery, chair of intensive-care medicine at University College London, tells Carbon Brief:
“The hospitals themselves weren’t built for this weather any more than anything else is really – and of course it’s going to get worse, in an exponential function.”
Many of the FOI responses provided to Carbon Brief identified specific building defects, such as roof leaks, which led to the flooding incidents during periods of heavy rainfall. There is a huge – and growing – backlog of maintenance work at NHS hospitals that was estimated in 2024-25 to need repairs costing £15.9bn.
Chris Naylor, a senior fellow at the King’s Fund, a thinktank focusing on health policy, tells Carbon Brief:
“Dealing with some of the backlog maintenance would probably help with climate adaptation as well, because of leaky roofs and all the rest of it. But we do also need to be thinking specifically about climate adaptation within the NHS and making sure there is funding for that.”
Montgomery points out that with trusts “mostly bankrupt” and most hospitals running a deficit, the question remains how to fund such interventions. “They’re struggling to keep their heads above water and they’re losing money,” he says.
Dr Mark Harber, a consultant nephrologist and special adviser on climate change at the Royal College of Physicians, tells Carbon Brief that hospitals at least need to make plans for extreme weather. This is particularly important for patients in need of time-dependent and life-saving treatments, such as kidney dialysis and chemotherapy.
Harber notes that hospitals, supply chains and transport could all be disrupted by floods:
“You have to have plans in place to deal with that, even if the NHS can’t deal with the flooding risk per se.”
Carbon Brief asked NHS England – which is responsible for the majority of the trusts that reported flooding disruption – for comment, but had not received a response at the time of publication.
Methodology
The list of incidents reported by trusts can be viewed here.
Carbon Brief sent FOI requests to 120 English NHS trusts that have reported any incidents of flooding since 2021 in NHS England’s Estates Returns Information Collection (ERIC) dataset. This covers around 60% of all English NHS trusts.
Carbon Brief also filed FOI requests with all 42 of the health boards and trusts in Scotland, Wales and Northern Ireland, which are equivalent to English NHS trusts.
All trusts and health boards were asked for details of wards, departments or services that have been temporarily or permanently closed due to weather-related flooding, such as river flooding or heavy rainfall.
This matches the wording used to describe a flooding event in the ERIC system, which requires the reporting of all flood events “caused by external weather events” that trigger a risk assessment by staff. Such external events are distinct from floods caused by other issues that are not related to the weather, such as burst pipes.
In total, 14 trusts did not respond and many more said they did not hold the data requested. Some trusts provided data, but on further questioning stated that the data they provided covered all flooding events and it was not possible to say which were related to weather conditions. These cases have not been included in the final dataset.
The post Revealed: Floods have forced at least 67 closures at NHS hospitals since 2021 appeared first on Carbon Brief.
Revealed: Floods have forced at least 67 closures at NHS hospitals since 2021
Go behind the scenes with executive editor Vernon Loeb and oceans correspondent Teresa Tomassoni as they discuss the search for heat-resilient coral reefs that are somehow defying the odds to survive a warming planet.
The world has already lost more than half of its coral reefs, and most of what remains is at risk of disappearing in the next 25 years.
Climate Change
DeBriefed 19 June 2026: Bonn talks end in ‘gridlock’ | Energy’s ‘new era’ | Oceans in climate negotiations
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Bonn talks close
‘SIDE-STEPPING AND STALLING’: UN climate talks in Bonn have ended in “gridlock”, according to Climate Home News. The outlet reported on the failure to balance developing countries’ need for climate-adaptation finance with “richer nations’ desire to move forward” on emissions cuts. It added that both topics were subject to “rule 16”, meaning no agreement could be reached and work will be pushed to the COP31 summit in Turkey. Inside Climate News quoted UN climate executive secretary Simon Stiell, who said the talks had seen “side-stepping and stalling”.
JUST TRANSITION: One “glimmer of hope” came from negotiations on achieving a “just transition”, reported Euronews. The news outlet said negotiators “made headway on operationalising the Belém-Antalya mechanism”, intended to support people in the shift to a low-carbon economy. However, Politico concluded that much of the focus in Bonn had “shift[ed] to efforts outside diplomatic talks – raising questions about the future of global climate negotiations”.
‘ATTACKING SCIENCE’: Agence France-Presse reported on the EU, Switzerland and “dozens of developing nations” warning of “attacks on science” by a “small group of fossil-fuels interests” in Bonn. Table Briefings explained that “the 1.5C target is increasingly being challenged” and the role of the UN climate-science panel – the Intergovernmental Panel on Climate Change (IPCC) – in an upcoming assessment of global climate progress “remains controversial”. See Carbon Brief’s full write-up of the talks for more detail.
US-Iran deal
PRICE DROP: The US and Iran announced that they have reached an interim agreement to halt the war and reopen the strait of Hormuz, reported Bloomberg. Oil prices have fallen, as the “long-awaited deal” began the process of “eas[ing]” the global energy crisis triggered by the conflict, according to the New York Times. The Associated Press noted that high fuel prices will “likely outlast the Iran war”.
‘OIL GLUT’: The Financial Times reported that the International Energy Agency (IEA) has forecast a “glut of oil” emerging next year, if the peace deal holds. The IEA said this would allow countries to build new strategic reserves, as they “review their energy strategies and policies in response to the crisis”, according to Reuters.
‘NEW ERA’: Agence France-Presse reported that oil and gas companies have “few illusions about a return to normal for the Gulf energy industry after more than three months of blockage”. One analyst told the newswire that the war “showed the oil and gas industry that Hormuz risk is no longer just a geopolitical headline”.
Around the world
- OCEAN MONITOR: The Trump administration is “abandoning its plan” to dismantle a $368m ocean monitoring system key for tracking climate change after a “bipartisan backlash on Capitol Hill”, reported the New York Times.
- CORAL HAVEN: The New York Times covered preliminary research, presented at the Our Ocean Conference in Kenya, suggesting there could be three times as many “coral refugia” – where corals are relatively safe from climate change – than previously thought.
- BAD CREDIT: Down to Earth reported that the first carbon credits issued under the Paris Agreement’s new Article 6.4 mechanism are “facing scrutiny over alleged links to institutions controlled by Myanmar’s military junta”.
- OIL BACKTRACK: Reuters reported that oil-and-gas company Equinor has dropped a renewable-energy target and scaled back clean investments, while another Reuters story noted that Shell is selling off its offshore wind assets.
1.1 billion
The number of children facing “at least three overlapping climate hazards”, according to a new Unicef report covered by Agence France-Presse.
Latest climate research
- Including the “permafrost carbon-climate feedback” in climate models increases the chance of exceeding “tipping elements” – such as the Greenland ice sheets, Atlantic Meridional Overturning Circulation or Amazon rainforest – by up to 50% | Environmental Research Letters
- The intensity of influenza outbreaks could decline in temperate regions, but increase in tropical areas over the next century, as the climate warms | PNAS Nexus
- European snow cover has declined by 20% for December and January since the start of the industrial era, revealing an “unprecedented ongoing shrinkage of European winters” | Communications Earth & Environment
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
The more than 2m battery electric vehicles (BEVs), 1m “plug-in” hybrids (PHEVs) and 100,000 electric vans on UK roads are already saving drivers a total of around £3bn a year, according to new Carbon Brief analysis. This amounts to savings of more than £1,100 a year in fuel costs for each BEV driver in the UK. The analysis comes amid reports in UK media this week that the government is considering “watering down” its EV sales targets.
Spotlight
Oceans rising at UN climate talks
The state of the world’s oceans is inextricably linked to the changing climate – and many delegates at UN climate talks want to see more focus on this issue, reports Carbon Brief.
Oceans are often described as the world’s “greatest ally” against climate change – absorbing 30% of carbon dioxide (CO2) emissions and most of the heat generated by those emissions.
They are also the site of important climate solutions, such as huge offshore windfarms and the shipping industry’s transition to cleaner fuels.
At the same time, the oceans themselves present a growing danger to coastal communities and sea life due to sea level rise, marine heatwaves and ocean acidification.
These diverse issues have led to growing calls within the UN climate process for more focus on oceans. During climate negotiations this week in Bonn – known as SB64 – nations and civil society had a chance to air these views during an “ocean and climate change dialogue”.
‘Elevate action’
Oceans first entered UN climate outcomes in 2019, when the final COP25 negotiated text requested a new “dialogue” on “the ocean and climate change to consider how to strengthen mitigation and adaptation action”.
The following years saw this dialogue established as an annual event. However, the political weight of these discussions has been limited.
COP31 is being co-led by Turkey and Australia, but with Pacific islands playing a supporting role. These small islands sometimes self-identify as “large ocean states”, stressing the ocean’s centrality in their societies.
In Bonn, figures from across the presidency threw their weight behind this issue. Chris Bowen, an Australian minister and incoming COP31 “president of negotiations”, told attendees:
“Australia, Turkey and the Pacific see an important opportunity to elevate ocean-based climate action.”
Strategies and finance
The two-day dialogue in Bonn involved a series of panels, statements and breakout groups.
One of the main topics was how oceans are integrated into national climate plans under the Paris Agreement, known as “nationally determined contributions” (NDCs).
Three-quarters of the latest round of NDCs mention oceans, with conservation of “blue carbon” ecosystems the most frequently described action. (Landscapes such as mangroves can both absorb CO2 and protect coastal areas.)
Delegates also discussed alignment with the UN biodiversity process, as well as ocean finance, which currently makes up less than 1% of all climate finance.
(As discussions were taking place in Bonn, country officials also gathered in Mombasa, Kenya for the 11th Our Ocean Conference. Carbon Brief’s associate editor Giuliana Viglione attended the conference and will publish a full summary shortly.)
Developing countries were clear that many of the ocean-related actions in their NDCs would depend on receiving more financial support.
‘Political momentum’
With the backing of the COP31 presidency, delegates were hopeful about where this year’s dialogue could lead.
Charles Hamilton, an advisor for the Bahamas who spoke for the Alliance of Small Island States (AOSIS) in the dialogue, told Carbon Brief that island representatives “are not traveling thousands of miles to just talk and pat ourselves on the back”. He added:
“A dialogue that just remains a dialogue is just more talk – no action.”
Given that, he said “discussions in the dialogue must move into COP decisions and the decisions must be actioned”, noting the importance of finance.
Marina Corrêa, oceans lead at WWF-Brazil, pointed to an upcoming UN climate change Standing Committee on Finance forum as a space to ramp up pressure on ocean finance.
More broadly, she wanted to see the presidencies translate their support into a “leader-level ocean initiative” that could “mainstream” oceans across negotiations.
“We have a really interesting opportunity, in terms of political momentum,” Corrêa told Carbon Brief.
Watch, read, listen
‘HOTTER THAN HELL’: An episode of the BBC’s Rare Earth podcast titled “hotter than hell” considered the issue of extreme heat, with input from experts and “people facing up to the hottest temperatures on the planet”.
NOT BROKEN?: John Drake, a professor of ecology at the University of Georgia, wrote an essay for Aeon – also re-published as a Guardian “long read” – questioning the framing of ecosystems and climate systems “breaking down”.
ON COURSE: On his Volts podcast, US climate journalist David Roberts interviewed UK climate minister Katie White, quizzing her about whether the UK will “stay the course with its climate plans”.
Coming up
- 20-28 June: London climate action week
- 21 June: Colombia presidential runoff
- 24 June: UK Climate Change Committee progress in reducing emissions 2026 report to parliament
Pick of the jobs
- Mongabay, managing editor – Africa | Salary: Unknown. Location: Global
- Contexte, environment reporter – Brussels | Salary: €45,000-€60,000. Location: Brussels
- Climate 200, communications director | Salary: Unknown. Location: Australia
- Energy Tracker Asia, energy transition correspondent | Salary: $3,000-$4,000 per month. Location: South-east Asia (remote)
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.
The post DeBriefed 19 June 2026: Bonn talks end in ‘gridlock’ | Energy’s ‘new era’ | Oceans in climate negotiations appeared first on Carbon Brief.
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