Summary
This modelling study examines the cascading impacts of nuclear war-induced stratospheric soot injection on global food systems, projecting substantial reductions in crop, marine fishery and livestock production across multiple regions. The authors integrate climate modelling with agricultural and food security analyses to estimate widespread famine risk under different nuclear conflict scenarios. The work highlights the systemic vulnerability of globalised food systems to catastrophic climate disruption.
UK applicability
The United Kingdom's high dependence on imported food for cereals, proteins and fresh produce means it would likely face severe food insecurity in a nuclear winter scenario. The findings underscore the importance of UK domestic food production resilience and emergency food security planning, though the study does not isolate UK-specific impacts.
Key measures
Crop yield reductions, marine fishery production losses, livestock productivity decline, caloric availability, population at risk of severe food insecurity and famine
Outcomes reported
The study modelled the effects of soot injection from nuclear war on crop yields, marine fishery productivity, and livestock production globally, and estimated consequent food insecurity and famine outcomes. It quantified production losses across arable cereals, aquaculture, and pasture-based livestock systems under various climate disruption scenarios.
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