COP30: Food System Transformation

I beg to move,

That this House has considered COP30 and global food system transformation.

It is a pleasure to serve under your chairship, Mrs Harris. I appreciate the chance to have this debate, which is of critical importance, both globally and in our country, where the hottest summer since records began is pushing our farmers to the brink. The harvest of 2025 was the second worst harvest on record, according to the Department for Environment, Food and Rural Affairs. That comes on the back of over £1 billion of lost income for our farmers, following the extremely wet winter last year. All of that threatens our food security and pushes up food prices.

I thank my hon. Friend for securing this really important debate. She is absolutely right that we must support our farmers on food security and farm sustainability, but poor returns are threatening their viability right now. The dairy industry has contracted by 6% in the past year, and prices have dropped significantly; it was announced that they would go down by almost 20% in November. Some farms are going to be closing their gates for the very last time. Does my hon. Friend agree that to secure a fair deal for our farmers, the Agricultural Supply Chain Adjudicator and the Groceries Code Adjudicator must be combined and given real teeth to enforce properly?

I thank my hon. Friend for that, and I applaud her constant advocacy in Parliament on behalf of farmers.

The second part of the debate is about the conference of the parties and how we can bring about legally binding obligations that translate into exactly the kind of measures my hon. Friend talked about. In just a few weeks, world leaders will come together at the global climate summit, COP30, which will be held in Belém, Brazil, in close proximity to the Amazon rainforest. It is being held there deliberately to symbolise the Amazon rainforest’s critical role in global climate stability.

In the lead-up to COP30, I hope this debate today will allow us to consider why this summit is expected to finally be billed as the nature, food and climate COP, putting food systems at the heart of the climate agenda for the first time, and rightly so, because the way we grow, produce and consume food is one of the biggest drivers of the climate and nature crises and one of the most powerful levers we have to solve them. At the same time, climate change is one of the most significant threats to our food production and national security.

Why does COP matter? We have come a long way since the Kyoto negotiations in 1997. That was the first time that countries around the world agreed global governance arrangements to address the shared challenge of global warming. At the time, we were hurtling towards a catastrophic 4°C or even 5°C world, so what a feat it was, unknown in any other sector or on any other issue, to create a framework agreement between 198 parties—197 countries or states and the European Union—to stabilise greenhouse gas concentrations at a level that could help to prevent dangerous human-induced disruption of the climate system. Through dialogue, negotiation and finance, the COP process has brought about legally binding agreements—the Kyoto protocol and then the Paris agreement in 2015—where we all agreed that we have a common and interdependent future, and that we need to do everything possible to keep global warming below 1.5°C.

COP30, as with past COPs, requires us to be more sustainable, and that includes food production, as the hon. Member said. In Caerfyrddin, we have a public farm producing vegetables for schools and residential homes, so public land is being used for public benefit. Why can all local authorities not follow suit, supported as we were by shared prosperity fund funding, and use public funds and public land for the public plate?

Order. I remind Members that interventions need to be short, not a speech.

No, it is not a speech. Thank you, Mrs Harris; I appreciate your guidance. Does the hon. Member agree with that sustainable and seasonal way of reducing food miles by using public land?

I will perhaps come back to that a little later, but I agree completely about the importance of the SPF, as well as the sustainable farming incentive. In my constituency of South Cambridgeshire, we have public land—council land—working on regenerative agriculture with farmers, to provide the food we need. We need the stability and certainty of the SFI for our farmers.

The priorities it is anticipated will be negotiated at COP30 include deforestation-free supply chains, nature-positive farming, support for family farms and sustainable fisheries. This transformation has to be just, and that is as important here at home as it is globally. Farmers have always been on the frontline of climate change, as stewards of our countryside and producers of our food, and because they are struggling with the unavoidable impacts we now face. They must be at the heart of our solution.

The Liberal Democrats have been clear that the transition to sustainable farming cannot be done to farmers; it must be done with them. However, progress has been slow, and the uncertainty surrounding the sustainable farming incentive risks undermining the confidence and stability that farmers need if they are to continue to invest in regenerative agriculture, local food networks and diversified protein crops, as proposed by the National Farmers Union. Improving soil health, supporting pollinators and keeping farm businesses viable makes business sense too. As Martin Lines—the chief executive of the Nature Friendly Farming Network, who farms in Cambridgeshire—says, nature-friendly farming plays a “vital role” in building resilience to weather extremes. He says:

“Practices like improving soil health, using cover crops, and integrating habitats into fields are helping farmers stay productive while cutting back on inputs.”

We also call for a just transition in food and farming, as does World Animal Protection. At home, we must match words with action. The Liberal Democrats would accelerate the delivery of the long-promised land use framework, aligning food, farming and biodiversity policy. We would protect and strengthen the sustainable farming incentive and deliver it now. We would support a just transition for farmers and animals, reduce food waste across the supply chain and champion local, sustainable food production to boost rural economies and resilience.

Those points are all very welcome. Does my hon. Friend accept that global food systems already produce more than enough food to feed the world, but the problem is distribution and fair trade? As my hon. Friend the Member for Glastonbury and Somerton (Sarah Dyke) said earlier, the Groceries Code Adjudicator needs to be beefed up. We need to make sure that the supermarkets and the large retailers do not bully our primary producers to such an extent that they are wasteful in trade systems.

Absolutely, and that is where the just transition must come in. We must make sure that this works at home. In fact, when we look at the amount of food being produced, we need to talk about nutritional security rather than food security.

Finally, the UK must lead at COP30. Belém will be a turning point. Negotiations are already under way for a new COP declaration on food systems.

I praise the hon. Lady for getting this really important debate going today. She is absolutely right, and I am confident that Britain will be among the most ambitious nations at COP30. However, will she, as I do, take a second to reflect on the fact that, thank God, we have a Government going there who believe in climate change and recognise that we need to get the rest of the world to be more ambitious, rather than a Conservative Government who would be going there to scrap the Climate Change Act 2008, or Reform turning up to say that climate change is entirely bogus?

I could not agree more. I have worked internationally for 20 years, and I have seen that when Britain leads, other countries follow. Our Climate Change Act was the first in the world, and 60 countries immediately followed it. Other countries followed the independent Climate Change Committee. I have seen emerging economies work with their Governments, looking at how they do economic development and leapfrogging by learning from us. When Britain leads, others follow, and that is why I ask the Minister to make sure we confirm that the Prime Minister will be at COP30, to show that we continue to lead from the front.

I also ask the Minister to ensure that we sign up to the COP30 declaration on food systems and support all the work that has been done up until now to make sure that food systems are central to the climate change negotiations at Belém. I cannot emphasise more the impact, both here and across the world, of the U-turn—the turning of their back—of the Conservative Government, and Reform right now, on climate issues. I have worked alongside countries and communities ravaged by climate impacts that are waiting to see us take that leadership once again.

Order. I remind hon. Members that this is an hour-long debate. The hon. Member for South Cambridgeshire has already been very generous in allowing interventions, which has limited the time that Back Benchers have left to speak. We will start the Front-Bench speeches at 5.08 pm, so Back-Bench speeches are now limited to two and a half minutes. The Opposition party Front Benchers will have five minutes each and the Minister will have 10 minutes. Anyone who takes interventions is likely to upset colleagues.

It is great to serve under your chairmanship, Mrs Harris. I am grateful to the hon. Member for South Cambridgeshire (Pippa Heylings) for securing this debate and for her excellent speech, which calls on us to be ambitious at COP30 and to ensure that Britain reaffirms its commitment to leading multilateral climate processes. It is also a moment to renew domestic efforts to reduce carbon emissions and adapt to the changing climate. We know that the green transition will lower energy bills, as well as ensuring that our food processes are nature-based and take on board the challenges that the hon. Member set out. As has rightly been highlighted, more action is needed to ensure that food systems are fit for purpose in future, both globally and in the UK.

Agriculture is the second highest-emitting sector—the highest after energy. Intensive agriculture is also one of the leading drivers of biodiversity loss, alongside a warming climate. Pollution from agriculture impacts 40% of the UK’s inland water bodies. In Brazil, agriculture has driven large-scale and devastating deforestation of tropical rainforests, which are one of the biggest levers for mitigating climate change, so the hosting of COP30 in Belém could not be more important.

Food systems have vast potential to make a significant contribution to reducing carbon emissions, adapting our landscapes to a changing climate, providing healthy and nutritious food for people, restoring our natural environment and supporting thriving rural communities and economies. Here in the UK, we have a farming and food sector to be proud of. I absolutely echo the hon. Member’s call to do all we can to rebuild the relationship with the farming community. In its advice to the Government on the seventh carbon budget, the Climate Change Committee has identified some of the policies and measures needed to support the transition to sustainable agriculture and reduce land-based emissions by 64% by 2050. As we head towards this important conference, I join the hon. Member, as I know colleagues do across the House, in calling on the Government to be as ambitious as they possibly can and carry on in that leadership role.

It is a pleasure to serve under your chairship, Mrs Harris. I thank my hon. Friend the Member for South Cambridgeshire (Pippa Heylings) for her excellent speech leading the debate.

When we talk about transforming global food systems, what we are really talking about is resilience: the resilience of people, of ecosystems and of economies. Right now, that resilience is dangerously thin. Our food systems are failing on every front. Globally, agriculture and land use drive 30% of emissions and 60% of biodiversity loss. Every 1°C of warming means 120 fewer calories per person per day. This is not abstract. It is hunger, instability and conflict.

The scientific consensus is clear: industrial farming is nearing its physical and environmental limits. Climate change, soil degradation and water scarcity threaten supply, while global demand for food is set to rise by up to 56% by 2050. Without urgent change, we risk cascading food shocks that will drive inflation and deepen inequality.

We know that degraded soil releases carbon, but healthy soil becomes an effective carbon sink. Farmers everywhere, including in my South Cotswolds constituency, want to be part of that change, but they need support and certainty. They need the Government to lead with them, not leave them guessing.

Resilience is about not just production, but education. Last night, I hosted a roundtable in Parliament that brought together campaign leaders, education experts, teachers and parliamentary champions to shape a future-facing curriculum to make sure that our young people are food and agriculture-literate. National action must also connect to global leadership. Later this week, the House will consider the global ocean treaty. Oceans are potentially great allies in the fight against climate change. If COP28 was the promise, COP30 must be the proof that the UK can move from words to integration, from fragmentation to resilience and from short-term fixes to long-term stewardship of the planet that feeds us all.