Today's satellite pic of the Persian/Arab Gulf. The red is blooming algae fertilized by nutrients (raw sewage) poured into the sea by coastal cities. We can see the turbulent outflow (Reynolds number over 2400) of the hotter water expanding and pushing itself out of the Gulf and the colder red tide being sucked inside. The red algae will asphixiate the fish and kill the pearl industry (if it exists) and clog the desalination plants's inflow pipes. When the temperature descends, the algae will die (all together) and the rotting mass will pollute the air. Maybe it will not bother native goat herds, but this is a fine example of a manmade ecological disaster. Solution: Wastewater treatment. My number is in the Kever Benjamin phone book.