Ready for a blast from the past? Thirteen.org has a video up called Will the Gator Glades Survive? It is described as: "A visit to the Florida Everglades reveals how that famed wildlife region is now threatened with destruction because of man’s tampering with the natural water system."
Interesting enough. But if you haven't clicked the link yet, you'll now find out why it's so interesting. It was originally broadcast in 1970 as part of a series Our Vanishing Wilderness thought to be the first televised series on the environment, being shot in 1969 and aired the next year.
The series was co-written by John Hamlet, a well known naturist from Weeki Wachee, who was of course married to a mermaid.