Florida Audubon has a fantastic group entitled Florida Audubon Advocacy that deals with a myriad of conservation problems in the State of Florida. The following link is from their site and discusses water problem which greatly effects the Indian River Lagoon.
https://fl.audubon.org/news/eric-draper-ten-things-you-can-do-help-coastal-water-quality
Florida Audubon also offers a monthly newsletter called the Advocate. The Advocate features up-to-the-minute developments in environmental issues. Click HERE to enroll