In this article, Bingham looks at the implementation of the Montreal protocols, and its efforts to phase out chlorofluorocarbons, a key part of the economics of the chemicals part of the Avonmouth munitions plant site. It also explores the impact of one of the most important factors; the 1987 Montreal Protocol which led to the complete phasing out of chlorofluorocarbons (CFCs), which had by then become an important part of the economics of the chemicals part of the site. Was it inevitable that the site would close, or did other factors contribute to its demise?