Climate Change

Danny Chambers Excerpts

Thursday 19th March 2026 Commons Chamber

[Dr Danny Chambers (Winchester) (LD)]

At a time when misinformation about climate change is louder than ever, these discussions are not just important but essential if we are serious about protecting our environment and our future. I thank my constituency neighbour, the hon. Member for Basingstoke (Luke Murphy), for securing the debate, for putting this issue in context, and for showing that climate change is also about health and national security.

I will focus on something that we too often overlook: the direct link between climate change and global health. In veterinary science, we use the term “one health” to reflect the idea that human, animal and environmental health are completely interlinked and inseparable. Climate change does not just warm the planet; it accelerates the spread of disease across all animals, humans and plants. Climate shocks, floods, droughts and extreme heat do not happen in isolation; they disrupt sanitation, displace populations and overwhelm what are often very fragile health systems. That is exactly the type of environment in which infectious diseases thrive, and we are already seeing this. As the climate shifts, we see vectors such as midges and mosquitoes moving into different parts of the world and carrying diseases into new regions. Diseases that were once considered tropical are now being seen in other parts of the world as a direct result. In the UK, we now have a disease of livestock called bluetongue, which is spread by midges that were not previously found in northern Europe.

We know that the poorest countries are hardest hit by climate change, despite contributing to it the least. We have seen that very recently in the Caribbean, which has had record-breaking storm seasons. However, this is not just a distant humanitarian issue; it is about our safety here in the UK. Disease does not respect national borders, and a threat anywhere is a threat here as well. When health systems abroad are overwhelmed, outbreaks spread faster, surveillance systems weaken, and the risk of global transmission rises. That is how local crises become global crises.

Layered on top of all that is one of the greatest threats that we face in global public health: antimicrobial resistance. Antimicrobial resistance is a slow pandemic that is already under way. It gets relatively little media attention, but it is having a huge and direct effect on day-to-day medicine in the UK. It means that antibiotics stop working, routine operations such as hip replacements become high-risk procedures, and minor infections become life threatening. We are talking about returning to a world where a simple cut could kill. It is predicted that 39 million people will have died by 2050 as a direct result of antimicrobial resistance. We can add to that picture climate change, which is driving infection, increasing antibiotic use and accelerating resistance, creating a perfect storm.

With falling vaccine uptake, climate change denial and growing global instability, it is often the scientists who are doing the hard work to keep us safe, yet too often their warnings are ignored. That has real-life consequences. When we cut overseas development assistance and scale back support for global health systems—for example, through the Fleming Fund—we are not actually saving money; we are directly increasing the risk to ourselves. Such funding helps to build up resilient health systems, supports disease surveillance, and reduces the spread of infection before it reaches our shores and our NHS.

Prevention is not soft policy; it is hard economics. If we wait for a crisis, we have already failed. By the time a new pandemic or an antimicrobial-resistant superbug arrives in the UK, the cost will be measured not only in budgets, but in lives. This House faces a simple question: do we act early on climate, on global health and on prevention, or do we wait and pay the economic price later? A world without effective antibiotics is not an abstract future; it is becoming a very real possibility. It is one that we should not be willing to accept.