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The other night, I became frustrated with my football coverage so switched between documentary channels on the cable network. I managed to catch the second half of a program about earthworms. Prior to final credits, the narrator emphasized the significance of the earthworm’s contribution towards maintaining soil fertility. He then suggested that soil fertility was crucial for the long term sustainability of life on earth. Unfortunately, he repeated the words monotonically and they became divorced from any reasonable sense of urgency. As a keen student of organic principles, I’ve been concerned about the long term consequences of poor quality soils for several decades. Irrespective of the demand for organically grown produce, there...