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Flushing away phosphorus

The Atlantic

This article in The Atlantic explores the role that phosphorus - long thought to be a limiting factor in the productivity of the biosphere - plays in the food system. Phosphorus fertiliser has historically come from bones, phosphate rock deposits and human waste. Today, while there are fears of a shortage of mined phosphorus, phosphorus runoff also pollutes water and harms aquatic ecosystems. Companies are now trying to close the phosphorus loop by recovering the fertiliser from human sewage and animal waste.

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