Earlier this month (October 2025), The Guardian published a report quoting a leaked or yet-to-be-released intelligence assessment: climate change and ecosystem collapse are judged to pose a severe threat to UK national security (food, supply chains, migration, economic stability).
According to The Guardian, beyond the UK, climate change impacts are increasingly threatening countries worldwide, affecting economic and political stability on a global scale.
That warning is consistent with a growing consensus among defense and policy analysts that climate change is now a “threat multiplier.”
National Security and Climate Change
For years, climate risk was seen as something separate from defence and strategy, a topic for sustainability teams, not the security council. That’s now changing.
UK defence figures and security analysts are calling for national security planning to include food, water, and climate resilience. They’re right to do so. It is crucial for governments and organisations to collaborate on a comprehensive plan for climate adaptation action, ensuring that adaptation measures are coordinated and effective.
Because the evidence is clear:
- Britain is deeply reliant on imported food from regions already under severe climate stress. To reduce vulnerability in food systems, coordinated efforts among stakeholders – including local communities, governments, and organisations – are essential.
- Extreme weather is disrupting global supply chains, energy systems, and trade.
- Climate-driven instability and migration are no longer distant possibilities, they’re emerging realities.
What the Headlines Miss: We Still Have Agency
Media coverage has framed the story as alarming – and understandably so. But at RedLines, we see something different.
We see an opportunity for strategic resilience.
The UK, like every advanced economy, has the resources, foresight, and innovation ecosystem to adapt, if we act fast and in coordination.
The problem isn’t that we lack the data or models. It’s that our systems – across government, business, and infrastructure – are still structured for a slower world. To build adaptive capacity, we must update processes and implementation strategies to respond to rapid climate change.
National security, trade, energy, and climate policy are managed in silos. Budgets are reactive, not preventive. Effective monitoring and finance are essential to ensure funding is targeted, adaptive, and supports continuous improvement.
Decision-making cycles lag far behind the pace of environmental change.
That’s where organisations like RedLines can help bridge the gap, sharing knowledge and supporting the implementation of adaptation processes.
What Needs to Happen Next
The intelligence warning is a signal, and signals are valuable only if we respond early. Early warning systems, risk management, and disaster risk reduction are essential for addressing loss, minimising damages, and monitoring progress in climate adaptation.
Here’s what an effective, forward-thinking response could look like:
1. Integrate climate risk into national and corporate security strategies
Climate resilience must move out of “environmental” departments and into the core of decision-making.
2. Break down silos between government, business, and data
Climate doesn’t respect jurisdictional boundaries. Neither should resilience planning. Involving stakeholders in the process of breaking down silos is essential for effective cross-sector collaboration.
3. Invest in adaptive infrastructure
From energy grids to food logistics, we need systems designed to flex under pressure, with a critical focus on protecting infrastructure and nature from climate risks.
Adaptation may also require changes to business operations, ensuring organisations can respond effectively to climate impacts and maintain long-term sustainability.
4. Stress-test our assumptions through scenario planning
At RedLines, we use advanced modelling to help partners explore cascading risks – from supply chain shocks to regional instability – by applying various methods to assess the socio-economic factors that contribute to overall risk and vulnerabilities. This kind of foresight helps leaders prepare, not panic.
5. Reframe climate resilience as security and opportunity
By treating climate risk as a core element of national strategy, we have an opportunity to enhance adaptation actions and adaptation solutions.
What RedLines Is Doing
At RedLines, our mission is to help organisations turn complex climate data into actionable foresight.
We support organisations in monitoring and implementing adaptation actions and adaptation solutions, ensuring that their efforts are effective and context-specific.
We help leaders identify their exposure to environmental and systemic risks, explore “what-if” futures, and develop the strategies and partnerships that make them more resilient.
We’re currently working with clients to:
- Build integrated climate-risk dashboards that link environmental data to supply chain and financial metrics, supporting organisations in developing adaptation plans and sharing best practices and knowledge.
- Facilitate cross-sector resilience simulations, helping decision-makers stress-test real-world responses and monitor the effectiveness of adaptation actions.
- Design adaptation strategies that combine physical resilience (infrastructure, logistics, energy) with policy and governance reform, and guide the implementation and monitoring of adaptation solutions.
Because resilience can’t be outsourced – it must be built in.
A Future Built on Foresight, Not Fear
The warning from the intelligence community, whilst worrying, shouldn’t be seen as all doom – it’s an invitation to rethink how we define security.
The climate crisis is already shaping our century. But whether it becomes a security collapse or a security transformation depends on the decisions we make now.
At RedLines, we’re working to ensure it’s the latter.
If your organisation wants to understand and prepare for climate-related risks, not just for compliance, but for resilience, we’d be glad to explore how we can help.