Our excrement is a natural, renewable and sustainable resource – if only we can overcome our visceral disgust of it

Simply, we waste more than a third of our food supply, and the gains from simple improvement in distribution would far outweigh those from modification of supply. Simply consider that close to 80 or 85 percent of the cost of a tomato can be attributed to transportation, storage, and waste (unsold inventories), rather than the cost at the farmer lev

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only an impossibly complete recycling of all wastes voided by grazing animals could, together with near-perfect recycling of all other sources of organic nitrogen, provide the amount of nitrogen annually applied to crops in ammonia-based fertilizers. Meanwhile, there are no other materials that can rival the combination of malleability, durability,

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