Native Floridian here. In fact, I lived in this particular city for a few years. In my opinion, the biggest challenge our waterways are facing is nitrogen and

Native Floridian here. In fact, I lived in this particular city for a few years. In my opinion, the biggest challenge our waterways are facing is nitrogen and phosphate runoff from residential lawn fertilizer. As we bulldoze natural environments to build subdivisions, we're adding acres of pristine healthy looking lawns. I live in a coastal region. Depending on the type of grass, it's not possible to maintain a healthy lawn without adding some kind of fertilizer. This is because the soil is sandy and alkaline. Lawns generally want slightly acidic soil. We want to be able to point the finger at large entities like municipal sewage treatment plants and large farms. That is easier than changing our own habits and expectations around what our yards should look like.