In Idaho, we have a big problem with nutrient runoff into the river, both synthetic phosphorus and organic nitrogen. It doesn't seem to matter if it is organic or not, it is all chemicals.
By practicing correct nutrient management techniques, conservation drainage practices (which I suspect may be difficult, up to impossible in Florida due to high water tables and porous soils), ground covers and conservation tillage, the problem can be solved, whether we use organic or synthetically sourced products.
Personally, my problem with organics is that it is hard to tell what is actually being put into the soil and what the plants are able to use.
I ran a fertilizer test in my greenhouse, and sent many potting soil samples off for lab analysis and was heartened to find that my synthetic fertilizers were not adversely affecting the microorganisms I was trying to encourage. On the flip side, my organically fertilized plants were not getting enough of key nutrients. Of course, this was all in pots...
No matter what the source of the nutrients, as long as the results are good, the environment is protected, sound science is used and results are verifiable, it seems like a "win" all around to me!
Have a Blessed Thanksgiving!
Carolyn