Professor Jack Hannam, former President of the British Society of Soil Science (2023–2024) and now Head of the Agriculture, Health and Environment Department at the Natural Resources Institute, University of Greenwich, joins the conversation with deep expertise in soil systems and global environmental policy. Having represented the sector at international forums including COP29 and the UN Convention to Combat Desertification, and having advised both UK Parliament and the Canadian Senate, Jack brings a global scientific perspective on soil health, food production, and ecosystem resilience.

She is joined by Lieutenant General Richard Nugee, a former senior British Army officer and Chief of Defence People, who led the UK Ministry of Defence’s landmark review on climate change and sustainability. Now an internationally recognised advisor on the intersection of climate and security, Richard provides a defence and strategic lens on how environmental degradation is reshaping global stability.

Together, they unpack the implications of the UK Government’s Nature Security Assessment, which warns that biodiversity loss and ecosystem collapse could trigger food shortages, supply chain disruption, migration pressures and geopolitical instability. The discussion explores why climate and nature risks are still underrepresented in national security planning, and how concepts such as food, water and energy security are becoming central to resilience.

Drawing on history—from the WWII “Dig for Victory” campaign to today’s reliance on synthetic fertilisers—the episode examines how society has become disconnected from the land, and what that means for future food systems. Jack highlights the science behind soil degradation, nutrient loss and sustainable alternatives, while Richard emphasises the need to redefine security beyond military capability to include the resilience of the nation itself.

The conversation ultimately issues a clear call to action: soil is not just an environmental concern, but a strategic asset. For scientists, policymakers and citizens alike, understanding and restoring soil health is essential to safeguarding food systems, ecosystems and the stability of nations in an increasingly uncertain world.

For more information, visit: soils.org.uk/soilmatters