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Chemical low
The Bou Craa mine in occupied Western Sahara is one of the world’s largest sources of phosphorus, a vital component of the fertilisers on which much of the world’s agriculture, and global food production and food security, depends. For some time there has been concern about our reliance on a finite supply of phosphorus, and the implications of this for agricultural productivity, food prices and nutrition, particularly in developing countries. The term “peak phosphorus” has joined the term “peak oil” in the lexicon of 21st century scarcity. An article in this week’s Nature journal (Elser and Bennett, 2011) addresses the phosphorus problem …
October 10, 2011
