Follow the fertilizer.
One of the suspected culprits of the toxic algae blooms that have plagued south Florida waterways since June can be traced to farms and groves, lawns and golf courses, landscaping and Orlando theme parks. Even local governments may be feeding the blooms. Septic tank leakage has factored as well.
And, environmental experts said, climate change behind fiercer storms and increased heat can bear some blame.
But the trail to the truth, like the polluted water itself, appears murky.