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humanity
If you weigh up the long-term impact of catastrophes on future generations, it is hard not to see their prevention as one of our greatest priorities, argues Seth Baum.
While the element phosphorus is not scarce in the earth’s upper crust, the amount that can be accessed for productive use in food production is orders of magnitude smaller due to a wide range of bottlenecks including physical, economic, technical, geopolitical, legal, ecological and environmental constraints. From a food security and sustainability perspective, the most important quantity is not the total amount of phosphate rock in the ground but the fraction that is available to be accessed by farmers and applied to agricultural fields for food production.
