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The report finds that the UK military-industrial sector is a significant source of greenhouse gas (GHG) emissions, estimating a total carbon footprint of 11 million tonnes of CO2 equivalent for UK military spending in 2018. It criticizes the Ministry of Defence (MOD) for selective reporting, noting that figures in the main text of annual reports cover less than one-third of total direct emissions. Beyond climate impacts, the document highlights a poor record in managing radioactive waste from nuclear submarines and warheads, and warns of catastrophic global cooling and famine should the UK launch its nuclear weapons. The author argues that only a fundamental shift in security strategy—away from long-range force projection toward territorial defence and human security—can align the military sector with climate goals.

The document argues that the Sellafield nuclear facilities lack defenses against a plane crash, which could release 45-50 times the radioactivity of the Chernobyl disaster and create exclusion zones between 200 and 700 kilometres. SGR asserts that all plutonium, including reactor-grade, can be used in nuclear explosives and demands a comprehensive review of nuclear industry risks, a reappraisal of public subsidies, and that BNFL be held responsible for its estimated £34 billion decommissioning and waste disposal bill.