Aerial footage shows devastation from toxic blue-green algae on Southwest Florida waterways

A freshwater algae bloom has been growing in Lake Okeechobee and the Caloosahatchee and St. Lucie rivers since early June. 

Satellite imagery shows that as much as 90 percent of the lake has had algae at the surface in recent weeks, and that algae has shown up in both river systems. 

https://www.news-press.com/story/news/local/2018/07/13/floridas-toxic-algae-bloom-see-aerial-footage-southwest-florida-water/784591002/