‘Peak’ phosphorus? The implications of phosphate scarcity for sustainable investors

Sarah M. McGill

Journal of Sustainable Finance & Investment, 2012, vol. 2, issue 3-4, 222-239

Abstract: Inorganic phosphate-based fertilisers have done much to alleviate the grave problem of global hunger, yet these gains have also come at the expense of a critical dependence on a finite mineral resource. According to various projections, current economic global reserves of phosphate rock, approximately 90% of which is used to manufacture chemical fertilisers, are diminishing and will be depleted within as few as 40--150 years -- a phenomenon commonly known as peak phosphorus . This article argues that much like the idea of peak oil before it, the peak phosphorus claim tends not to distinguish between long-term concerns about one day ‘running out’ of phosphate rock and the more immediate, multi-dimensional socio-economic causes and effects of poor resource management. The article shows the importance of a more nuanced understanding of the problem of resource scarcity to the sustainable investing agenda. In particular, the concentration of the majority of remaining global phosphate reserves in a handful of geopolitically sensitive countries and state-capitalist corporations presents a number of unexplored challenges to investors.

Date: 2012
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DOI: 10.1080/20430795.2012.742635

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