The climate crisis, primarily driven by human activities such as the burning of fossil fuels and the expansion of carbon-intensive agricultural practices, is impacting the lives and health of the UK population today. Continued support for extractive and highly polluting industries, fossil fuel subsidies, and investments are hindering the transition to clean renewable sources of energy. A lack of protection of the natural systems that sustain good health means built environments are scarce in green and blue spaces, and the adoption of healthy diets that also benefit the environment is undermined. This is leading to avoidable deaths and diseases from fuel-derived air pollution, energy poverty, poor physical activity levels and unhealthy diets.