PARLIAMENTARY DEBATE
Global Biodiversity and Ecosystems: National Security - 3 September 2026 (Commons/Westminster Hall)
Debate Detail
That this House has considered the nature security assessment on global biodiversity loss, ecosystem collapse and national security, published in January 2026.
It is fantastic to see how many Members from across the House are here for this fundamental debate. Climate breakdown and nature security are the most immediate and severe national security threats of our age. The fundamentals of human existence—food, water, health—all depend on healthy, stable ecosystems.
If anyone still thinks that environmental breakdown is a distant concern, this year should dispel that notion. We have experienced the hottest year on record so far, with prolonged drought, extreme temperatures and wildfires, and we are likely to have the highest number of heat-related deaths ever, forcing Ministers to evaluate where our national resilience is falling short. As the National Heat Risk Commission report published today shows, the country’s leadership have failed to implement measures to protect lives from temperature rises that have been expected for more than a decade. The Climate Change Committee has estimated that temperatures will increase further in the near term. Extremes are projected to become the new normal, and annual heat-related deaths may reach 10,000.
This year’s super El Niño will cause further chaos to seasonal weather systems. The breakdown not only is an immediate risk to life, but is rapidly destabilising our natural systems. We talk about tipping points, and there could be no clearer demonstration than the glacial collapse in the Himalayas last month, which unleashed a catastrophic torrent into the river system. Thousands were tragically killed or remain missing. Since then, glaciers vulnerable to collapse are being mapped out, with millions potentially impacted by violent shifts in landscape and the disastrous loss of vital fresh water supplies.
Today, we are debating a crucial national security assessment report that warns of the rapid depletion of global biodiversity, the collapse of critical ecosystems and the dismantling of major global food systems. The origins of the report are unclear. Indeed, the only document made public is a redacted summary of the assessment, published after a freedom of information request from Green Alliance. What we do know is that the Joint Intelligence Committee co-ordinated that landmark work to measure the impact of global biodiversity loss and ecosystem collapse on our national security. That Committee is the authority on profiling risks to the country and our society—a group not of environmental campaigners, but of top-ranking specialists and experts from across the intelligence community, responsible for monitoring and providing early warning of threats to Britain.
Not only have the Government refused to publish the full version of the report, despite requests from Members of Parliament across parties and from the Environmental Audit Committee—of which, I declare, I am a member—but expert witnesses giving testimony before the Committee, including Lieutenant General Richard Nugee and Tony Juniper, the chair of Natural England, have noted that the report has not had the official Government response that one would expect for any seminal piece of work, let alone such a stark warning from our intelligence authorities.
However, we do have a redacted version of the document, and that is stark enough. The assessment conclusively states that global ecosystem collapse and the loss of biodiversity threaten national security, human life and economic prosperity. The assessment presents a world where cascading risks from climate breakdown lead to crop failures, water scarcity, floods and novel diseases. That would mean billions of people facing likely food shortages, inflation, public health risks, supply chain disruption, loss of livelihoods, mass displacement and conflict.
On the scale of the risks that we face, if this is not one of the gravest prevailing national security risks of our time, I do not know what is. Without systemic change at national and international level, we are on a pathway to the total collapse of globally critical ecosystems. The trajectory of the collapse means that it will come as soon as 2030 for some and 2050 for others.
The Joint Intelligence Committee has identified several degrading ecosystems, the destruction of which could be so severe that our own national security and prosperity will be in peril. Those include the tropical rainforests of the Amazon and the Congo Basin, the major river systems of the Himalayas, the richly productive and abundant south-east Asian coral reefs, the aquatic nurseries of the mangrove habitats and the stabilising force of the Arctic boreal forests.
That is why our national security cannot only be understood within our own borders. We cannot build a secure island in an insecure world. We must keep to our international obligations, such as the actions detailed in the global biodiversity framework to be reviewed next month at COP17. We can also no longer obfuscate on contributing to the Tropical Forest Forever Facility investment fund that the UK so proudly helped to set up.
I think the hon. Member for Mid Derbyshire (Jonathan Davies) also wished to come in on the issue of the Tropical Forest Forever Facility.
To some extent, countries with more resources like the UK can insulate citizens from the worst effects. Countries that are least able and most exposed to risks may not be able to do so, or to protect their communities from the full force of the impacts, which range from mass displacements to famine. For some of the most vulnerable countries, especially in the global south, water scarcity means famine, an impact on energy supplies and is likely to lead to the displacement and deaths of millions of people. Such instability is intensified further by competition for scarce resources and worsens cascading external risks to our own domestic national security.
Nature is a foundational element of national security, and nature depletion, biodiversity loss, ecosystem collapse and climate breakdown are not merely environmental problems. Collectively, they will lead to the ruin of critical systems on which lives and livelihoods depend. We are no longer confronted by individual isolated incidents, events or extinctions. What lies ahead is whole-system collapse. As nature provides essential services that protect people, food, water and the economy, it is infrastructure—our most critical infrastructure—and should be treated as such.
Landscapes where ecosystems are compromised are more prone to natural disasters, such as drought, wildfires and flash floods. I say natural disasters, but those are often the results of decades of destructive policies and practices. Natural systems that reduce exposure to climate hazards are therefore part of our national resilience. We need to invest in adaptation now. Sustainable land management, for example, or harvesting and conserving water supplies, has become absolutely essential. The Climate Change Committee’s 2026 assessment makes the wider point clearly:
“Although climate risks are intensifying, the resulting damages are not inevitable. Proven and cost-effective adaptation measures are available for immediate deployment…Their implementation will be critical to protecting lives, infrastructure, and economic prosperity”.
We should begin to plan and fund natural infrastructure with the same seriousness as engineered infrastructure. The assessment makes it clear that there is still a chance for major interventions to slow the trend, protect communities and restore national security, but only if we act now—in this Parliament—and at the scale that the crisis demands.
Nowhere in this debate are the threats clearer than with regard to food security. This year, water scarcity and drought threaten food production. As all of us representing rural constituencies will be aware, the UK’s agricultural sector has suffered three of the five worst harvests in the past decade, and this year will almost certainly add to that record.
The UK imports around 40% of its food from overseas. Our over-reliance on global markets for food and fertiliser exposes the UK to supply shocks that could make the cost of living crisis much worse. Food security is not simply about producing more food; it is about the resilience of the entire system of agricultural production, including soils, water, fertiliser, feeds, distribution, international markets and the natural systems upon which they all depend. We also depend on international food markets, global supply chains and a stable international system, so protecting critical systems abroad is not simply an act of environmental justice; it is an investment in our own food security. [Interruption.] I hear you, Sir Desmond, but I have been very generous in the number of interventions I have taken. Had I not been so, there would be a much longer list of speeches for later, so I will persist for now.
There is still hope. The Joint Intelligence Committee assessment does not simply describe the threat; it identifies remedies, as it recognises that nature recovery strengthens resilience. Nature restoration and reducing human pressures on nature are both essential. We need to approach nature not as an environmental policy sitting outside national security policy, but as delivering national security benefits and integrated into all areas of policy.
The Government have levers to begin this wide-scale transformation, including fully funding the national tree plan; expanding the sustainable farming incentive; investing in natural flood management schemes such as river renaturalisation and wetland restoration; regenerating soil health to boost resilience for food production; restoring rivers and wetlands to rehabilitate freshwater habitat, flood protection and drought resilience; restoring peatlands for carbon storage and natural flood management; establishing more broadleaf woodland to enhance habitat for biodiversity and landscape-scale resilience; and converting to nature-friendly and climate-resilient farming. All those measures will contribute to maintaining the ecological functions on which we depend.
We need a stronger institutional approach to treating critical natural systems as national infrastructure and to establishing mechanisms to strengthen resilience and adaptation. That means recognising that healthy, natural systems are themselves a form of critical infrastructure.
On the question of transparency, Parliament should have full, unredacted access to the national security assessment as a matter of urgency, to scrutinise the evidence and ensure that our response as a nation is commensurate with the threats. If the Government want the public to become more resilient, the public must be trusted with the facts.
Historians will write about our decisions and future generations will judge us for them. They will recount how we knowingly gambled with global stability, the health of the natural world and the safety of human life and called it a growth agenda. As nature decline is a top-tier threat against the economy, weakening statutory protections and falling short of international obligations directly harms our economy and risks future prosperity. There is a temptation in politics to address environmental policy as an optional extra. The Government no longer have the luxury of time, and it would be a dereliction of duty by everyone in the House to disregard these warnings.
We need a Minister responsible for co-ordinating resilience to move from a managed decline approach to proactively investing in safeguarding for the future, because this is a cross-Government issue that needs to be addressed at scale. The Prime Minister has created a No. 10 for the north, but we need a No. 10 for the future, in the form of a dedicated climate protection unit in the Cabinet Office to drive the scale and pace of work required to restore nature and protect the public. Nature security is national security, and protecting the natural foundations of our country and our planet is ultimately protecting the security of life itself.
I am proud to represent a very small urban area of Britain in which, over the years, we have managed to increase the number of parks and open spaces. Our council takes an assertive approach in encouraging school gardens and promoting an understanding among children of the need for biodiversity. If we are to win the debate about biodiversity, it will be by convincing people who live in urban areas, who often sadly have very little interaction with the natural world, and where children are brought up without any understanding of the natural world, gardens or growing anything.
A couple of weeks ago, I was talking to some children about hearing the cuckoo. Very sadly, none of them knew what a cuckoo was or had ever heard of one. I grew up in a country area where we had a competition over who heard the first cuckoo in spring. It is that sort of change in understanding that we have to bring about if we are to win this debate on biodiversity and sustainability on our planet.
The Government are pledged to the 30by30 target for the oceans. That is fine, and I absolutely agree with it, but the problem with delineating figures like that is that it does not tackle the problem of river pollution going into the seas and the dangerous chemicals that go with it, which do not disappear but instead remain forever. Designating part of an ocean as a marine protection zone does not protect the entirety of the ocean; all it does is designate that area. We have to address the wider issue, which is the pollution emanating from our towns, cities and industries into our rivers and the water companies that do not deal with it.
I have 13 seconds left, so I will simply say this: it is great that the House has come back to this issue and that so many Members want to speak today. We are beginning to reverse the downward trend in the environment debate in favour of a debate on real sustainability.
I entirely support the Government’s commitment to ensuring that every penny of international aid is well directed, but in the context of General Nugee’s assessment that global biodiversity loss creates a national security risk here, we have to question whether the cuts to international climate finance and international aid can be justified any more. The report spells out the link between degradation overseas and the impact here. The assessment lays out the consequences: food insecurity, economic insecurity, increased migration and refugees, increased interstate competition, conflict and geopolitical instability, all of which will threaten us here at home. Experts told the Environmental Audit Committee that this means we must intervene internationally to halt and reverse environmental degradation.
I will conclude by saying three things to the minister. First, what specific actions have the Government taken since this assessment was completed? Secondly, I welcome the fact that the Government have joined other countries in investing in the Tropical Forest Forever Facility; it is absolutely fundamental to protecting us here at home. Thirdly, will the Minister consider bringing forward the fourth national adaptation programme? NAP3, published by the previous Government in 2023, was deemed ineffective by the Climate Change Committee. NAP4 is not due until 2028, but can we afford to wait two more years before we have an adequate plan?
It is disappointing that this short report had to be dragged out of the Government, kicking and screaming, and published only after a huge amount of pressure. Where is the evidence base underlying it? What are the Government afraid to share with us? Will the Government publish the full report and the evidence base that underlies it? If they will not, why not? Will they recognise that ecosystems are critical national infrastructure and have to be addressed as such? To echo a point made by the hon. Member for Chesterfield (Mr Perkins), will the Government recognise that we cannot wait another few years for the national adaptation plan, given today’s announcement from the World Meteorological Organisation that climate change is supercharging natural phenomena such as El Niño, which will lead to even worse effects in the UK and globally than we saw this summer? Nature security is national security.
Among G7 nations, the UK has the lowest remaining levels of biodiversity, which reduces our environment’s ability to support our society. However, it is possible to combat biodiversity loss and ecosystem collapse. The UK is privileged to be home to many world-leading zoos and conservation organisations—including, in my constituency, the wonderful and world-renowned Chester zoo—which have the expertise and experience in species conservation and habitat restoration to propel large-scale ecological recovery projects. I was pleased to learn of Chester zoo’s programme to reintroduce more than 100,000 critically endangered greater Bermuda land snails to the wild, saving the species from extinction, after a small surviving population was discovered in an air conditioning unit.
The efforts of such conservationists are essential to enriching ecosystems across the UK and the world, and we must strive to support them. Does the Minister agree that supporting our world-leading conservation sector is vital to ensure the UK’s long-term security and climate resilience?
In my limited time, I will highlight one reason for that, which I would like the Government to work with us on: the availability of pet flea and tick treatments over the counter in supermarkets. Some of those products, including fipronil and imidacloprid, are banned from agricultural use because they are considered to be too dangerous to the environment, yet they are available without a prescription or a check of the need for them. They are often used without any clinical need, so people regularly treat animals that do not need treatment with an inappropriate product. These products are being detected in waterways and chalk streams. They damage the entire ecosystem, especially insects and the salmon that live in chalk streams.
I have pressed the Government on this matter before, and the Veterinary Medicines Directorate is looking at it. This debate is about biodiversity. Allowing people to purchase in a supermarket products that are banned from agricultural use seems completely irresponsible and needs to be stopped.
The scale and pace of collapse mean that we have no choice, but we do have an opportunity if we can pull our country and our communities together and focus on our consumption—we consume the equivalent of 1.6 planets. We must also pull the nations together. We all live on this fragile planet, which is disintegrating before our eyes. This is an opportunity to reset the clock and get global and environmental stability. All nations much work together to save planet Earth. We are already seeing how intolerable it is, not least in the global south. It is coming our way too, so we cannot prevaricate, as we have over decades in the political space. We must now convene and act to stop the multifaceted risks we are seeing before our eyes, ensure that we stick to the Paris climate commitments and move faster. The disintegration and collapse of this planet is getting out of control. Will the Minister convene her colleagues for a new opportunity for geopolitical stability and, hopefully, save our planet?
The gaping hole in ownership is matched by one in funding. The Government’s own assessment places the annual value of ecosystem services to the UK at £87 billion, yet for every £100 of annual value that nature provides to us, public biodiversity spending is barely £1.20. We would not fund railways, hospitals or defence in this way. The choice is not between spending money on nature or saving money by ignoring the assessment, but between investing in resilience for our grandchildren or passing the considerable cost down to them when the consequences manifest. Yet it feels as if ignoring it is precisely what the Government intend to do. The report was published on the final day of a freedom of information internal review, after an initial refusal. It was pulled from a launch event. We still do not have the unredacted version.
I have three asks of the Minister. Who in Government owns this risk? When will the Government publish a cross-Government action plan in response to it? Will Ministers reconsider publication of the full assessment?
Nature is screaming at us. I spoke to farmers last week who told me just how alarmed they are at the situation. We have seen the wildfires, the droughts, the suffering of disease and the rupturing of glaciers, but as a society we are guilty of ignoring the environmental degradation around us. We live in the belief that the environment can somehow absorb these changes. I think it was 60 years ago that James Lovelock and Lynn Margulis came up with the Gaia theory. Most of us realise that the fact that we are losing species is contributing to the breakdown of our ecosystems. If it was an economic supply chain, we would be acting immediately.
Locally, about the equivalent of an Olympic-sized swimming pool of construction waste is dumped into Whitnash Brook every day. We cannot allow this kind of degradation to continue. As Chair of the Joint Committee on the National Security Strategy, I know that raising the matter of general resilience is crucial, and I look forward to the report from the National Resilience Committee in the Lords later this year.
The report produced by the Joint Intelligence Committee is significant. I believe it is as significant as the Stern report 20 years ago—it is a stand-out piece of work. It is critical that we listen and act for our environment, our economy, our food security and our health. Environmental resilience guarantees human resilience, and we must ensure that we restore and preserve our planet.
This year, in the midst of unnatural heatwaves and wildfires, I have so far attended five screenings across my constituency of the film on the national emergency briefing. It was heartening—but, at the same time, concerning—to see so many people of all ages coming together to agree on one thing: that something needs to be done about the environment and the impending disaster we are staring down. Those honest and open conversations are partly why I am so concerned that the Government have so far refused to publish in full the national security assessment. The public and Parliament deserve to see the full picture, especially on an issue with such significant implications for national security.
Over the summer I camped on the south coast, in Dorset, and it certainly felt and looked more like a scene out of Africa than the damp summer holidays I remember from my youth, but that is not something to celebrate. As the national emergency briefing makes clear, a halt to the gulf stream could lead to perishingly cold winters, as well as stifling summers. Elsewhere in the world, life itself may become intolerable, leading to many more climate refugees seeking to come to our shores.
The recent tragic events in Nepal resulting from climate-driven glacial collapse emphasise the consequences of inaction. We in the north, who invented the industrial revolution, which directly led to CO2 increases in the atmosphere, have a duty to find and implement solutions for the future of human—and, indeed, all—life on this beautiful planet Earth. Those solutions should not be seen as costs, but instead as the best investments that we and the whole world can profit from.
That is why we were never meant to see the report: the previous Administration considered that it was just too alarming. Economic insecurity will become more likely. Migration will rise as development gains reverse. Serious organised crime will look to exploit and gain control over scarce resources. Pandemic risks will increase. Conflict and military escalation will become more likely. The nuclear threat will rise as clashes between nuclear powers become more frequent. Those are the cold assessments of the Joint Intelligence Committee.
The Government were right to think that those assessments might scare people—they scare me—but they were wrong to think that they could hide them from the public. They were even more wrong to fail to make the case by setting out to the public the incredibly good news about how we can avoid those risks and create a world that looks much better than the one we currently inhabit. The convention on biological diversity COP coming up in Yerevan will look at the 23 targets of the global biodiversity framework, which set out the pattern for what we can do to change all this. What happens if we actually achieve them? Our air is cleaner, our water is purer, our energy is cheaper, our health is better, our economy is richer and our world is safer. What’s not to like?
Wildfires across Devon, as well as in Stourbridge, have caused a catastrophic loss of biodiversity. It is therefore no surprise that my constituents have told me that reading this biodiversity report has made them worry for the future. They fear what will happen to the world as a whole, and to our national security, if what is set out in the report is allowed to come true.
I have been consulting people across my constituency for many months to hear their concerns face to face, including by attending as many screenings as possible of the “People’s Emergency Briefing”, which I encourage the Minister to see. I also held a local climate assembly with my constituents, which was an important step in hearing how I can work with them to share their concerns, and how we can work together on long-term and sustainable solutions to biodiversity and ecosystem collapse, albeit only locally.
The report makes for very worrying reading. One constituent told me that the briefing went “far beyond” anything she had “feared for the future”, and that she was frightened by the real and imminent global risks that we face from climate change and biodiversity loss. Although the report is a worst-case scenario, about what could happen without action, the very suggestion that this is a possibility should worry us all.
The report mentions making radical change to farmland usage, but farmers need Government support for that. I recently discussed the issue with a constituent who has great knowledge of sustainable farming initiatives. He proposed a joined-up approach, with farmers working together on a 1000-acre challenge to research and develop sustainable farmland programmes. That is the kind of initiative that we must be developing now, before it is too late, and I urge the Minister to work on it.
I hope the Minister will listen to the concerns that I and many other colleagues have raised today and take urgent action to protect our ecosystems and promote sustainability globally for years to come.
As the national security risk assessment says, climate change, biodiversity loss and ecosystem disruption pose risks not just for the environment but for our economy, security and way of life. Climate and nature shocks are arriving faster, harder and more systematically than many of our economic systems were designed to handle.
We see that in four main ways: physical risks, including floods, wildfires, droughts and storms; transition risks as economies move away from high-carbon industries; nature-related risks affecting food production and natural resources; and systemic risks, where shocks spread rapidly across sectors and markets.
For many years, conversations about green finance primarily focused on corporate social responsibility. Today, they are equally about resilience and risk management. The UK is well placed to lead on that, but I fear that we are not doing as much as we could be.
I am vice-chair of the all-party parliamentary group on Tibet. What is happening in the Himalayas and the Tibetan plateau is one of the clearest examples of climate risk unfolding today. The glaciers of the third pole function as Asia’s water tower, feeding major river systems that support nearly 2 billion people. When rising temperatures accelerate glacial melt, the consequences extend far beyond the mountains. This is not simply an environmental catastrophe; it is about infrastructure resilience, water and energy security, as well as economic stability across the entire region. It is entirely the kind of systemic risk that modern resilience finance should help countries to anticipate and manage.
I conclude by asking the Minister this: who will be attending COP17, and will we make sure we show leadership on global resilience there?
We must not overlook the fact that nature security is national security. As a person of faith—as you are, Sir Desmond—I am guided by the profound principle of stewardship. We have a God-given responsibility to tend this Earth, protect creation and hand it down to our children—and, in my case, to my grandchildren.
The global statistics are eye-opening. We have seen a decline in monitored wildlife populations over the last 50 years. This is not just an issue for conservationists, but an existential threat to global stability that is unravelling the complex biological safety net that regulates our climate, purifies our water and pollinates our crops. Biodiversity loss accelerates climate breakdown, destroys agricultural land and creates resource scarcity. When water runs dry, crops fail in vulnerable regions and conflict inevitably follows.
In my constituency of Strangford, the hard-working farmers, fishing sector and conservationists support our rich biodiversity, which supports local economies and resilience. Right across Strangford we are seeing superb frontline stewardship work being done on the ground. We are adopting nature-friendly farming practices, and local conservation projects are working tirelessly to protect native species and restore vital peatlands, which act as crucial carbon sinks. We cannot allow environmental protections to become an unaffordable luxury or an undue tax burden on the very people keeping our communities afloat.
I have one question for the Minister, who I wish well, by the way—she has quite an endurance test today. I urge her to outline how the Government are integrating nature risk into our strategic defence frameworks. We need a comprehensive national nature security assessment that backs the brilliant stewardship we see in Strangford while strictly safeguarding the financial resilience of our hard-pressed farmers.
Disappointingly, this heavily abridged report did not reach the Chamber in Government time, and when it was finally released, the timing coincided with Davos, which dominated the headlines. That raises questions about how seriously this Government take the warning from their own report that nature is a foundation of national security and can no longer be treated in isolation from it.
With DEFRA budget cuts slashing the farming budget by more than £100 million and uncertainty over future support systems, many are disincentivised from the environmental role that their own survival depends on. We know that nature-friendly farming can bring real ecological improvement.
The Lang Partnership in Curry Rivel has proudly championed regenerative and nature-friendly farming methods for more than 30 years, showing what is possible when farmers are committed to working with nature rather than against it, but this needs widespread adaption and adoption to work.
The environmental land management scheme should be a vital road map to a resilient farming sector, but there has been a lack of investment in higher-tier schemes that will deliver the best outcomes for nature. That is why the Liberal Democrats would invest an additional £1 billion—a cash injection—into the farming budget, properly phased to target where it helps nature the most and to help farmers to boost food security, rather than allowing them to fall through the gaps.
This summer’s drought has put farmers under severe financial pressure. A potato farmer in my constituency, James Pullen of Perrins Hill Farm in Tintinhull, told me that he expects to be £200,000 down on his potato sales this year. In a good year, his crop averages around 25 tonnes to the acre, but this year it will be closer to 20 tonnes, with potatoes badly bruised or simply failing to grow.
I am grateful for the recently announced drought support for farmers, but we need real action that prevents ecosystem collapse and the heightened risk that that poses for our food security. We also need investment to hold water on farm reservoirs and fire ponds—nature-based solutions to water scarcity that will irrigate the land during prolonged drought and help communities to battle wildfires. However, farm reservoirs are not being built quickly enough to meet demand, as they are being held back by abstraction licences, planning permission, cost implications, uncertain grants and limited contractor availability.
I recently visited Wessex Water’s constructed wetland at Shapwick Heath in the constituency of my hon. Friend the Member for Wells and Mendip Hills (Tessa Munt). At 21 hectares, it is the largest water treatment wetland of its kind in the UK, filtering forever chemicals, phosphates and microplastics from our water, while boosting flood resilience and supporting Somerset’s biodiversity. Wessex Water is currently upgrading its sewage treatment plant, which will remove 170 tonnes of phosphates over the next 10 years. To put that into context, the 18,000 homes across Somerset that are currently stuck in a planning moratorium due to the nutrient neutrality regulations would produce only 3 tonnes of phosphate. That clearly demonstrates what nature-based solutions can bring to the future of water management and nutrient neutrality.
Somerset is increasingly exposed to devastating flooding that impacts farmers and homeowners alike. I was really happy to secure £50 million of flood defence funding for Somerset earlier this year, and I welcome Somerset council agreeing to ringfence some of those funds to target nature-based solutions that work in conjunction with hard engineering river maintenance across high-risk catchments, restoring natural hydrology upstream while protecting communities and infrastructure downstream. I am also pleased that a major element of the programme will be the council’s “My Community” programme, empowering local communities with bespoke, bureaucracy-cutting support and creating shared action on the ground.
Peatlands like those in the Somerset levels and moors provide vital species habitats, flood alleviation and water filtration, yet across the UK over 80% of peatlands are damaged. Somerset is one of only two counties still extracting peat, with licences to 2042 despite the levels and moors storing an estimated 11 million tonnes of carbon, which is equivalent to 10 years of the county’s emission. My Horticultural Peat (Prohibition of Sale) Bill sought to end the sale of peat, building on local efforts that are already under way, with companies such as Durstons near Street and RocketGro growing peat-free compost ranges. I congratulate the Minister on her new role, but I would be grateful for clarity on peat issues. Will there be a dedicated funding scheme for peatland restoration once the nature for climate peatland grant scheme ends next year? Will she go further and provide a timeline on when the Government will seek to end the sale of horticultural peat?
Habitat destruction also impacts insect life. For example, the shrill carder bee, which is one of the UK’s rarest bumblebees, has retreated from its historic stronghold on the Somerset levels and moors to a depleting population around Somerton, Castle Cary and Ham Hill. Its numbers have collapsed from around 140 in 2015 to just seven in 2022. Only five of 22 biodiversity indicators show long-term improvement, and 13 are still deteriorating. Does the Minister accept that the Government’s current approach is failing to meet their own Environment Act targets? What new action will change that trajectory?
Central to this failure to protect habitats is planning policy. The Government must adopt a strategic spatial approach to planning that protects the UK’s most important places for nature, which would support, not undermine, environmental regulation and champion nature-friendly design in house building and infrastructure from the outset. That is why the Liberal Democrats opposed and voted against Labour’s Planning and Infrastructure Act 2025.
If the Government are expecting 75,000 of their 1.5 million homes target to be delivered in Somerset, they must be fit for the future. I visited Bradfords Building Supplies in Glastonbury recently to discuss exactly this: how we make homes resilient to a changing climate, and how we prepare for extreme heat in summer and flooding in winter, including by making sustainable drainage systems mandatory in new developments. We cannot keep building homes for yesterday’s climate; Government planning policy needs to catch up.
We are also calling for the loopholes in the biodiversity net gain system to be closed, for the extension of how long a net gain habitat must be maintained from 30 years to 120 years, and for raising the requirement for major developments on larger greenfield sites from 10% to 100%. The case could not be starker. The Green Finance Institute puts the potential economic hit from nature degradation at the equivalent of 12% of GDP. That is more than twice the impact of the 2008 financial crash.
To conclude, this report was published in January. Half a year on, we have already seen the devastation that this year’s climate crisis has brought to the UK. Will the Minister confirm whether DEFRA and the Joint Intelligence Committee will reclassify the food security risk as high, publish the full assessment as originally intended, and act with the urgency it deserves, including through an annual climate and nature statement to Parliament?
Protecting biodiversity and ecosystems is very close to our hearts and the hearts of our constituents, and it is crucial to national security. As the MP for Epping Forest, I am privileged to see and experience the many benefits of biodiversity in our ancient woodland and beyond. As the heart and lungs of north-east London and our part of Essex, Epping Forest hosts 55,000 ancient and veteran trees and is home to 10 bat species, nine native reptile and amphibian species, over 15,000 fungal species and 28 butterfly species. I want the flora and fauna of Epping Forest and more widely to flourish and thrive, yet water security, air quality and climate change—to name just three risks—threaten biodiversity and ecosystems domestically and globally. That is why the report we are debating today is an important wake-up call.
The last Conservative Government’s Environment Act 2021 established legally binding targets, including to increase species abundance, so that by 2042 it is greater than 2022 and at least 10% greater than 2032, and to restore or create more than 500,000 hectares of wildlife-rich habitats outside protected sites by 2050. Our Conservative environment improvement plan built on that Act, committing to protect 30% of our land and our sea by 2030. Supporting the COP15 global target, we agreed to protect 30% of global land and global ocean.
The security assessment we are debating, published by the current Government in January this year, outlined the immense risk that biodiversity loss and ecological degradation is having and will continue to have unless we take action. It was disappointing that it took an FOI request from the Green Alliance for the Government to publish the report in this abridged form. It is clearly something that the Government do not want us to see in full. Will the Minister say what the Government’s plans are for letting us see it in full?
Turning to what was published, the report looks at global factors, such as food supply chains, but it is important that the Government’s approach to supporting biodiversity and ecosystems is not siloed between action abroad and action domestically, but is instead a joint approach. International action to address biodiversity must not solely sit within the Foreign, Commonwealth and Development Office, but must be co-ordinated with DEFRA and tie into the UK’s domestic agenda to boost supply chains and ecosystems here.
The report identified biodiversity loss and ecosystem collapse as a national security threat. We must all keep that at the forefront of our minds. This debate considers national security and keeping the UK—our families, homes and livelihoods—safe. National security should always be the first and foremost duty of any Government. One of the reasons the threats identified in the report are different from some other national security threats is the unpredictable behaviour of some natural events, such as the extreme weather events we are seeing both in the UK and globally—we have heard that point powerfully articulated today.
In the UK this summer, we have experienced one of the worst droughts in history. Over two-thirds of England —approximately 71%—was in drought following the driest July since 1836. In my constituency, the extreme heat facing the rest of the country was made worse by thousands of my constituents being left without running water this summer for about a week due to unacceptable Thames Water outages for several days. They faced hours of long queues for bottled water or waited anxiously for priority service delivery, with little certainty that they would receive any at all. With warmer summers expected as the norm, I would appreciate it if the Minister assured mine and everyone’s constituents that the Government are taking steps to ensure that they are integrating planning for warm weather into the very heart of our water industry’s operations, so that our constituents are not left exposed in such a vulnerable position in future.
The Government should also be supporting farmers to adapt to the impact of climate change, biodiversity loss and increasing market volatility. Sadly, the Government have voted for the family farm tax and the fertiliser tax. That is very pertinent to today’s debate, with the report touching on UK fertiliser resilience. There is also the double-cab pick-up tax and increased national insurance contributions for employers. All those actions have not only caused serious economic and cash-flow problems for farmers; they have also damaged job opportunities for young people coming into agriculture.
Why is this so important? Our fantastic farmers are custodians of approximately 70% of the UK’s land. Failing to support farmers is failing to support nature and biodiversity in the UK, which is both unforgivable and incredibly short-sighted. Farmers are pivotal to UK food security. The report says:
“Without significant increases in UK food system and supply chain resilience, it is unlikely the UK would be able to maintain food security if ecosystem collapse drives geopolitical competition for food.”
Therefore, once again, and in a sadly recurring theme, when this current Government should be supporting our family farms to help feed the nation and bolster our food security, there has been a record number of farm closures.
Sadly, when it comes to biosecurity, which is intrinsically linked to our food security, yet again the current Government have been slow throughout their tenure. I needed to ask 17 times in Parliament before they provided anything close to the money needed to complete the rebuild of the Animal and Plant Health Agency’s headquarters. They also continue to preside over an illegal meat import crisis at our borders.
In the last couple of years, Europe has seen foot and mouth disease, and African swine fever is also advancing up the continent. As we have heard in this debate and this morning’s statement, bluetongue virus is surging in the UK and poses a specific threat in the context of climate change. The virus is rapidly multiplying in the midge vector, the range of which is advancing northwards. Leaving us exposed to those threats is reckless.
The report we are debating is a much-needed wake-up call to the Government, who sadly seem to be asleep at the wheel. A report of this kind should have prompted an immediate response, yet we have seen in DEFRA that this Government do not seem to move with speed. That must change.
I look forward to hearing the Minister’s response to the points made today. However, more than anything, I would like a guarantee that there will be co-ordination across Government to bolster ecosystems internationally and in the UK. DEFRA must play a leading role in this work. I really hope that the Prime Minister was misspeaking in his comment yesterday about how he rates DEFRA among Government Departments. DEFRA should be at the heart of Government in protecting and feeding our country and looking after our precious environment. I would appreciate it if the Minister could confirm that.
Co-ordinated policy also needs us to be using every tool at our disposal. I urge the Government to recognise the important role that zoos play in conservation, as we also heard from the hon. Member for Chester North and Neston (Samantha Dixon). Zoos such as Chester and London, through species reintroduction and habitat restoration, do so much to help fight species decline. They need to be used to our full advantage to meet biodiversity targets.
In conclusion, when ecosystem degradation is occurring across all regions of the globe and, as the report states, the world could be on a path towards
“geopolitical instability, economic insecurity, conflict, migration and increased inter-state competition for resources”
the Government must not stand and sit idle. I ask them to act.
I will start by addressing the point made by the hon. Member for Waveney Valley about the status of the assessment and the material behind it, and I know that issue has been raised by a number of Members from across the House. As my predecessor, my hon. Friend the Member for Coventry East (Mary Creagh), outlined in some detail to the hon. Member for Waveney Valley in a session of the Environmental Audit Committee in July, it is standard and given practice that the Government do not comment on speculation about different drafts or versions. That position has not changed as I stand here today, nor will it likely change tomorrow. With that in mind, it is far more important that I focus my response on the critical themes raised in the debate.
Publishing the assessment was clearly vital, so that Parliament, the public and our international partners can see its core findings. Those findings are clear: biodiversity loss and ecosystem degradation pose a real risk to security, resilience and prosperity. We cannot, and this Government will not, shy away from the real challenges that creates. Climate change is one of the biggest challenges of our time, and this Government are the first to lead this country with both a Climate Minister and a Nature Minister. That reflects how seriously this Government take climate change and nature security.
I have long said that net zero and nature are two sides of the same coin when it comes to tackling climate change. The assessment highlights the critical role that nature plays in our ability to tackle the climate crisis. Of course, we cannot fight this greatest challenge alone, and many hon. Members raised that point. Climate change and nature do not abide by rules or borders. Working to implement the advice raised through the assessment requires leadership at home and abroad, working with our international partners to strengthen food security, biosecurity, global supply chain resilience and international co-operation.
As many hon. Members highlighted, the findings of the assessment are stark. Global ecosystem degradation and collapse threaten UK national security and prosperity. That is not an environmental issue alone; it is a systemic risk to the UK’s resilience and long-term security, as many hon. Members articulated. The UK’s food security and economic resilience depend on healthy ecosystems at home and overseas. Nearly 40% of our food is imported, and for as long as we continue to enjoy bananas, rice, kiwis and avocados, we will never realistically be able to rely on domestic food production alone. That means we are at heightened risk of environmental pressures overseas disrupting our supply chains, increasing prices and reducing resilience in the UK.
That is not an isolated finding. The World Economic Forum’s “Global Risks Report 2026” identified extreme weather as the most severe global risk over the next decade, with environmental risks accounting for five of the 10 highest-ranked long-term risks. The nature security assessment suggests that domestic nature-related risk could reduce UK GDP by around 6% by the 2030s, with a further 6% reduction arising from international risks transmitted through global supply chains in some scenarios. The conclusion of our assessment is extraordinarily clear and should leave no one in any doubt: nature security is national security, and nature stability is global stability.
Responsible Governments identify emerging risks early, strengthen preparedness and build resilience before shocks occur. This Government are determined to rise to that responsibility. Other political parties may tell people simply to sit back and enjoy a rapidly changing climate, as we heard over the summer from Reform. However, we will not give up on tackling these threats head-on or put our head in the sand, as others in Opposition sadly seem determined to do.
It is important to stress that the assessment is neither a forecast nor a prediction. It is a forward-looking assessment designed to help the Government to plan for potential shocks, such as disruption to food systems, supply chains and economic stability, that are credible enough to warrant preparation. Its purpose is to help us to anticipate those risks, test our resilience and take appropriate action. That is exactly what the assessment does: it looks around corners rather than relying on the rear-view mirror. It is worth stressing that, via the assessment, the UK is doing something important that other countries are not. By creating, publishing and debating the assessment, we are a global frontrunner in discussing nature security.
Our assessment is the first published national security assessment of its kind in the world. After we published it, the UK’s presentations at the OECD resulted in several global partners using our approach to understand and consider how ecosystem-related risks affect their own resilience and national security. Later this month, the Foreign Secretary will bring Foreign Ministers together at the United Nations to discuss how to respond to climate and nature security threats. The assessment will provide an important evidence base for those conversations.
I recognise that this is a critical juncture for nature. We will continue to use upcoming international opportunities to make the case that protecting nature and tackling climate change must go hand in hand, because healthy ecosystems underpin resilience, security and prosperity.
Turning to this Government’s response, we have launched the first ever taskforce on the national security and resilience risks of a changing climate and nature loss, bringing together leading security, military and academic experts to help us to identify and prioritise risks, strengthen cross-Government co-ordination and turn evidence into practical action. The taskforce, launched in June this year, provides independent challenge and recommendations to ensure that climate and nature risks are considered more systemically across national security and resilience planning.
Separately, we have commissioned a three-year nature security research and development programme to improve indicators, early warning capability and analytical tools. That will help the Government to identify emerging risks earlier, stress-test resilience and take preventive action before disruption escalates.
A number of hon. Members on both sides of the House spoke about the importance of the food sector to national security and the functioning of the UK, which the Government have recognised by designating it as critical national infrastructure. DEFRA works closely with the Cabinet Office and other Government Departments to strengthen preparedness and resilience across the food system and supply chains. We are also investing more than £2.7 billion a year in farming and nature recovery, supporting resilient domestic food production, healthier soils, pollinators and nature-friendly farming.
The nature security assessment makes it clear that severe ecosystem degradation can contribute to the emergence of novel zoonotic diseases. We are acting to bring down the risks that that poses, strengthening resilience to those risks through the UK biological security strategy, enhanced disease surveillance and a one-health approach that recognises the links between environmental, animal and human health. That improves our ability to identify, assess and respond to emerging biological threats.
This Government are also addressing nature-related risks at source through the international climate finance programme. Climate markets and green finance were mentioned by several hon. Members during the debate. The UK’s international climate finance strategy places nature at its core, investing in the protection and restoration of forests, oceans, freshwater and other critical ecosystems that support global stability.
It was mentioned right at the beginning, but I am delighted to confirm that today the Government have announced that they intend to invest £400 million in the Tropical Forest Forever facility. The TFFF represents a critical evolution in forest finance, providing long-term support for tropical forest protection. I am sure hon. Members recognise that investing in forests is one of the most effective ways to tackle the climate and nature crisis and to support UK growth and security.
As hon. Members across the House have acknowledged, the nature security assessment has made it clear that nature loss can impact food security, water security, economic resilience and national security. We are taking those findings seriously. There is no single Department that can address them alone, and that is why we are working across Government to ensure a co-ordinated response. These are global challenges, but they are being felt close to home. The recent wildfire at Dunwich Heath in Suffolk was in my constituency, and it was a stark reminder to me that the environmental risks are no longer distant or abstract, and that we must build resilience here in the UK as well as overseas.
We have restored nearly 23,000 hectares of peatland since 2020 to store carbon. I was delighted to visit my hon. Friend the Member for Derbyshire Dales (John Whitby) recently to look at the work that the UK is doing to restore and invest in our peatlands. That work plays a vital role not just in managing and restoring nature but in helping to tackle the threat of wildfires. Such work, which is in addition to supporting farmers through nature-friendly farming schemes and delivering our environmental improvement plans, means we are taking practical action at home alongside our international efforts abroad.
I again thank the hon. Member for Waveney Valley for securing this important debate and the continued interest of the House in this agenda.
Question put and agreed to.
Resolved,
That this House has considered the nature security assessment on global biodiversity loss, ecosystem collapse and national security, published in January 2026.
Contains Parliamentary information licensed under the Open Parliament Licence v3.0.