Larry Brand thinks red tides are getting worse thanks to nutrient runoff caused by people. Needless to say, this has not made him popular in his home state of Florida.
Florida's agriculture industry, in particular, would like him to go away.
Links between pollution and red tides have been cited by others, so the suggestion is not exactly implausible. But hey, maybe things are just different in Florida where developers have clout and red tides are natural events.