The balance of life there depends upon a seasonal infusion of freshwater from the mainland. Once it was a certainty of nature, but no more. The drones who in the 1940s carved levees and gouged canals throughout the upper Everglades gave absolutely no thought to what would happen downstream to the fish and birds, not to mention the Indians. For the engineers, the holy mission was to ensure the comfort and prosperity of non-native humans. In the dry season the state drained water off the Everglades for immediate delivery to cities and farms. In the wet season it pumped millions of gallons seaward to prevent flooding of subdivisions, pastures and crops. Over time, less and less freshwater reached Florida Bay, and what ultimately got there wasn’t so pure. When the inevitable drought came, the parched bay changed drastically. Sea grasses began to die off by the acre. The bottom turned to mud. Pea-green algae blooms erupted to blanket hundreds of square miles, a stain so large as to be visible from NASA satellites.
