The word fertilizer evokes a pastoral image of grazing cattle transforming a sun-drenched field of grass into nutrients for crops, beckoning us back to simpler times. However, the super-productive modern agricultural system is fed by mineral phosphate, the principal American source being Florida, where its strip-mined extraction devastates vast areas of undeveloped wildlands, and ends with a dead zone in the ocean, where it finally comes to rest after wreaking havoc on the soil, watersheds and a