Here are the climate-related sections of speeches by MPs during the Commons debate Extreme Heat: Preparedness.
Tulip Siddiq (Labour)
The hon. Member said that he wanted to take interventions. He mentioned schools. On my way into Parliament today on the Northern line, which appropriately for today’s debate was boiling, I received a number of emails from worried parents. Schools are closing early in my constituency, a lot of them smaller primary schools in Victorian buildings, because they cannot accommodate children in the heat we are experiencing at the moment. It will not come as a surprise to the hon. Member that it tends to be single parents or parents without secure incomes who suffer the most when schools finish early. Do we need to speak with the Department for Education about getting some funding for extra fans and cooling units for our schools, so that children do not suffer because of climate change?
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Adrian Ramsay (Green)
The incidents I talked about were not isolated weather events, but a real-world test of our preparedness for a hotter climate, exposing vulnerabilities across our health service, critical infrastructure, emergency response and natural environment. Britain has entered a new climate reality. The Climate Change Committee’s latest UK climate risk assessment warns that climate risks are increasing faster than our preparedness, with progress described as slow, stalled or moving in the wrong direction.
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Adrian Ramsay (Green)
The Climate Change Committee warns that, by 2050, 92% of existing homes could overheat during summer heatwaves if we do not have a full programme of adaptation measures. Most of the homes that we will live in then have already been built now, which means that national retrofit programmes are essential to keep people safe, including those that deliver shading, cooling, ventilation and green infrastructure. At the same time, every new home, school, hospital and workplace should be designed for a hotter climate through passive cooling measures such as external shading, ventilation, green roofs and reflective materials. Retrofitting later is far more expensive than building resilience from the outset, and every building constructed today should be designed for the climate we are moving towards, not the one we have left behind.
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14:49 Adrian Ramsay (Green)
Extreme heat is becoming one of the greatest threats facing farmers and our food system. Predictable seasons, reliable rainfall and healthy soils are at extreme risk from climate breakdown. The National Farmers’ Union describes climate change as
Higher temperatures dry soils, increase irrigation demand and reduce crop yields. This year’s dry spring brought harvests forward into late June in some areas, with lower spring yields expected as a result. Many farmers can now harvest only in the mornings and evenings because grain becomes too dry during the hottest parts of the day, which increases storage fire risks and, in some cases, necessitates costly cooling before processing. The Climate Change Committee estimates that heat stress already costs agriculture around £205 million a year. Last year’s spring, the hottest and driest on record, contributed to one of the poorest harvests in recent decades, costing arable farmers at least £800 million in lost revenue.
The consequences extend far beyond the farm gate. The UK food security digest concludes that climate-related disruption is already pushing up food prices, while the Energy and Climate Intelligence Unit estimates that extreme weather added around £361 to the average household food bill during 2022 and 2023. As Britain becomes more reliant on imported food, we are increasingly exposed to climate shocks overseas, with disruption to just five staple foods estimated to have driven 30% to 40% of food price inflation over the past two years. Climate change is no longer just affecting where food is grown; it is affecting what families can afford. Supporting farmers through resilient farming systems, better water management, healthier soils, stronger animal welfare and continued innovation is essential to protecting affordable food, rural livelihoods and the resilience of Britain’s food supply. Food security is national security.
Those impacts come on top of decades of habitat loss and ecological decline. The Wildlife Trust warns that climate change is amplifying the nature crisis, while the Royal Society for the Protection of Birds has highlighted that important habitats, including peatlands, salt marshes, heathlands and wetlands, are becoming increasingly vulnerable to prolonged heat and drought. The problem we have is a lack of real-time data on ecological impacts.
All of that matters, because healthy ecosystems are part of our national resilience. The Climate Change Committee increasingly describes healthy ecosystems not simply as environmental assets, but as part of the nation’s resilience infrastructure. Healthy ecosystems store water, cool communities, reduce flood risk and support biodiversity. Peatlands store carbon and retain water during periods of drought. Wetlands help to regulate river flows, reduce flood risk and provide cooler refuges during heatwaves. Trees and woodlands lower surrounding temperatures, helping to cool both urban and rural environments while supporting biodiversity.
If we continue to lose the natural environments that regulate water, cool our towns and cities, retain fresh water and sustain biodiversity, we will become progressively less resilient to the impacts of climate change. Protecting and restoring nature is therefore not simply an environmental ambition; it is an essential part of preparing Britain for a hotter future.
The June 2026 heatwave alone is estimated to have reduced UK productivity by at least £2.36 billion and, as that figure reflects only productivity losses, the true economic impact is almost certainly higher. If current trends continue, annual productivity losses could reach £25 billion by 2030. The Climate Change Committee estimates that around £11 billion a year is needed to strengthen the UK’s climate resilience, with around a third of that invested in protection from extreme heat. Adaptation is an investment in resilience, and prevention will always be cheaper than recovery.
A world that warms by 4° would bring dire consequences beyond the limits of adaptation, making climate resilience and decarbonisation inseparable. The challenge before Parliament is therefore not whether to act, but whether we act quickly enough and with enough ambition to prepare Britain for the climate in which we must now live.
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14:58 Rachael Maskell (Labour)
I want to focus on a few points around health, that being my speciality, and to look at the scale of what we are talking about. We have heard already about the 2,700 deaths so far this year from the climate emergency due to heat alone. We think particularly of the most vulnerable—babies, children under the age of four and older people, whose bodies find it harder to regulate—and those who have cognitive dysfunction, who will find it difficult to make the necessary adaptations to keep themselves safe. Of course, we also know that the challenges bear down hardest on those in lower socioeconomic circumstances.
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15:04 Alison Taylor (Labour)
We were warned more than 20 years ago that extreme temperatures would be the consequence of uncontrolled greenhouse gas emissions, and what did we do? Not enough. Not enough to reduce greenhouse gas emissions and not enough to adapt to climate change.
Having missed the opportunity over the past 20 years, we need to look forward, with short-term relief and long-term strategies to retrofit buildings, emphasising design and construction techniques that reduce the impact of extreme heat, and to look to the circular economy. We need to consider embodied carbon in buildings, the topic of last night’s interesting Adjournment debate from the hon. Member for North Herefordshire (Dr Chowns). As I mentioned last night, local authorities need to look at how buildings are demolished, so that cleared sites do not hypothetically hold embodied carbon and are not adversely affected by industry benchmarks, such as the Building Research Establishment environmental assessment method—BREEAM points are impacted by poor and thoughtless demolition practices. In conclusion, I stand ready to help the Government meet our 2030 and 2050 targets on climate change and greenhouse gases.
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15:15 Cat Eccles (Labour)
As we swelter through another heatwave, many people are welcoming the hot and sunny weather, but it is unprecedented to have record-breaking temperatures three months in a row, and that is only set to continue. Experts estimated that there were more than 2,700 excess deaths during the May and June heatwaves attributed to heat-related causes. We are now seeing dangerous climate change-fuelled heat claiming lives, disrupting schools and hospitals, and shutting down transport and infrastructure. We need to adapt urgently.
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15:21 Ellie Chowns (Green)
I represent North Herefordshire, an absolutely beautiful constituency with farming at its heart. Farmers are at the forefront of the impacts of climate change—not just extreme heat but other weather extremes such as flooding. As my hon. Friend the Member for Waveney Valley pointed out, we are facing a situation in which climate change, or climate breakdown, is driving the increasing frequency and severity of extreme weather events. As he pointed out, we have known about this for decades, but sadly Governments have effectively been asleep at the wheel on reducing climate-warming emissions to the level we need them at, and particularly on adaptation and building our resilience.
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15:23 Ellie Chowns (Green)
We need to change our ways as a country. Experts have been telling us this for a long time. The Committee on Climate Change has pointed out that we are not doing anywhere near enough to meet the adaptation challenge facing us. I call on the Government to grasp the nettle. This is investment in building a better future—it is a win-win investment. Building houses that are suitable for the weather conditions that we will be facing is much cheaper than having to retrofit them afterwards. If we use materials and building methods that enable us to cool buildings naturally, we can create urban areas that are not such huge heat islands as they currently are. By building in such a way, including with lots of tree planting in urban areas, we can cool temperatures locally using natural methods. We have a real opportunity here, and we should grasp it with both hands. Tackling the adaptation and the resilience challenge is not about just sticking our finger in the dyke or using a sticking plaster approach, such as patchwork retrofitting air-con in every building that is struggling with the heat; it is an opportunity to imagine and to build a better country for the future.
I raised this in Health questions this morning, but the issues we face are not solved just by retrofitting our hospitals. We have to enable everybody in the country to stay healthy in the extremes of heat that we are increasingly seeing so that they do not have to go into hospital in the first place. This is a cross-Government requirement and priority, so will the Government put in place adaptation plans that the Climate Change Committee will itself declare are fit for purpose?
Finally, we must put the brakes on the problem at the same time. It is not an either/or between mitigation and adaptation; we still have more to do to reduce greenhouse gas emissions and the emissions that are causing climate breakdown, so that we save ourselves from the worst possible effects of runaway climate change. I call on the Government to go further and faster on real climate action, not least by holding the line on Jackdaw and Rosebank. We cannot on the one hand struggle with facing the consequences of climate change, such as extreme heat, and on the other hand continue to take more fossil fuels out of the ground and burn them. We need consistent Government policy across the piece. I hope the Government will provide that.
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15:27 Pippa Heylings (Liberal Democrat)
Climate change is not a distant threat; it is here today. Minister, it is an issue of national security. It affects our constituents, damages our economy and, increasingly, costs lives. On our current trajectory, average summer temperatures in my constituency of South Cambridgeshire could rise by more than 4°C. Days above 30°C are expected to increase six-fold, while summer rainfall could fall by more than a fifth.
Those are just statistics, but like others I have heard stories of children struggling to learn in overheated classrooms, older people becoming dangerously ill in care homes, critical incidents in our hospitals, farmers facing drought and water shortages, and communities and wildlife under threat from wildfires, yet despite these growing risks the Climate Change Committee has concluded that the Government’s approach to climate adaptation is clearly not working and we are woefully unprepared. Can the Minister confirm that the Treasury has now accepted the forecast of 2°C warming by 2050, and, if we now have an agreed forecast, whether each Department is doing what it should be doing and setting adaptation goals, given we can now model what that means for every sector?
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15:30 Olly Glover (Liberal Democrat)
The hon. Member for Birmingham Perry Barr (Ayoub Khan) rightly highlighted the fact we have had long-term knowledge of climate change and we have collectively, as a human species, failed to take decisive action thus far. The hon. Member for North Herefordshire (Dr Chowns) talked about the impact of learning. Finally, my hon. Friend the Member for South Cambridgeshire (Pippa Heylings) talked with her customary passion and expertise on this topic. She said that the impact of climate change is here today and that it should be considered a national security issue.
That is why we, as politicians who care about these topics, must tackle net zero scepticism head on. We are directly seeing the impacts of climate change now, and we will spend far more money if we focus solely on mitigation—which, alas, we need to do because of our lack of progress—rather than on tackling the root causes of carbon emissions.
The Liberal Democrats would develop resilience standards for the energy, water, transport and telecommunications sectors, and support homeowners to install proactive adaptation measures against flooding and overheating. We also believe that no one should be expected to work in unacceptably high temperatures, and we support the Climate Change Committee’s recommendation to introduce a statutory maximum workplace temperature.
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15:41 Paul Holmes (Conservative)
As our climate changes, extreme heat can no longer be regarded as an exceptional event. It is becoming a recurring feature of British summers, and Government policy must adapt accordingly. Reducing emissions remains important, but adaptation must sit alongside mitigation. We have a duty to ensure that our homes, infrastructure, public services and energy system are capable of coping with the conditions we increasingly face. That begins with protecting the most vulnerable.
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Paul Holmes (Conservative)
Preparing Britain for a changing climate means much more than setting emissions targets. It means protecting vulnerable people, ensuring that Government Departments are properly prepared, building homes that are fit for hotter summers, embracing practical technologies that improve resilience and maintaining an electricity system that is capable of supporting them. Adaptation is not an alternative to tackling climate change; it is an essential part of responding to it, because whatever path the climate takes over the coming decades—and we all know what path that will be—our responsibility today is to ensure that Britain is ready.
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12:19 Angela Eagle (Labour)
Despite some of the issues and considerable challenges—they are considerable—that hon. Members have pointed out in their contributions, I want to cheer people up slightly with the statement that the Nature Minister, my hon. Friend the Member for Coventry East (Mary Creagh), made on the Floor of the House yesterday. She pointed out that before the Paris agreement, the world was on track for 4% of warming, but we have now got it down to 2.5. That is still way too high, but I use that example because I want to inject a little bit of confidence that if we can get our processes right—internationally as well as nationally—we can do something about this. Such issues are so complex and interrelated that it is easy for people to think that the problem is too great and we cannot possibly deal with it, and then be despairing about it, so I wanted to inject that little bit of optimism. We have made progress, and we have to make sure that we carry on making progress.
The Government recognise that extreme heat fuelled by climate change is no longer a rare seasonal event to be managed with temporary emergency measures; it is a chronic, recurring, structural risk to our economy, public health and national security. Every hon. Member who has contributed today has recognised that point. Our response to extreme heat is built on a combination of tried and tested plans and capabilities that have been refined over time, and also longer-term programmes to meet the specific challenges of climate change.
Evidence suggests that without action, the physical impacts of climate change could cost England’s economy between 1.1% and 3.3% of GDP by 2050, and at least 7.4% by the end of the century. We are taking action now in recognition that it is economically beneficial to invest early to reduce emissions. As Nicholas Stern said many years ago, the more money spent on investing to prevent, the cheaper it is to deal with the consequences.
The Government have put clean energy and climate action at the heart of their agenda, which includes showing global leadership by setting a world-leading target to reduce emissions by at least 81% by 2035. Cutting emissions remains our first line of defence, but it is harder when the political consensus that existed about climate action has broken down globally and in this country. There are still people who claim that climate change does not exist and that we are spending a load of money for no particular reason, when we know that scientists are universally agreed that the increase in heat and changes in climate that we are talking about have been caused by human effects on our planet’s climate. The sooner that everybody recognises that globally, the easier it will be for the great ingenuity of the human race—when it is in a good mood—to deal with the consequences of what was done in the past with industrialisation.
We are taking action as well as mitigation to prepare the UK for the impacts of climate change. Under the Climate Change Act 2008, we maintain a robust climate change risk assessment, and through the national adaptation programme, DEFRA co-ordinates a rigorous cross-Government response to ensure that our sectors remain resilient.
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15:54 Angela Eagle (Labour)
The Government are strengthening long-term climate adaptation by setting stronger objectives based on common planning assumptions, informed by the guidance that we requested from the Climate Change Committee. Yesterday, in the statement given on the Floor of the House by my hon. Friend the Nature Minister on the state of climate and nature, she announced on climate adaptation that we are building our resilience for a minimum of 2% of warming by 2050
“and supporting combined authorities to increase their resilience to climate change, too.” —[ Official Report , 13 July 2026; Vol. 789, c. 649.]
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