The Mississippi algae bloom is un-natural when it is fertilized by the cattle industry and agricultural run-off.
According to the Okeechobee cracker in post #6, they are spraying for grass and more. They are using chemicals simply to use up the budgeted quota of chemicals. What chemicals are they using? What are long-term effects of these on algal genomes?
'When the public protests, confronted with some obvious evidence of damaging results of pesticide applications, it is fed little tranquilizing pills of half truth. We urgently need an end to these false assurances, to the sugar coating of unpalatable facts. It is the public that is being asked to assume the risks that the insect controllers calculate. The public must decide whether it wishes to continue on the present road, and it can do so only when in full possession of the facts. In the words of Jean Rostand, "The obligation to endure gives us the right to know." '
(Rachel Carson, Silent Spring)