
This is a viral idea for WWF.
Why not create a new conspiracy theory with a purpose to draw public attention to the problems of overfishing? For example:
Wikileaks discloses a secret document that suggests that in 2003 US intelligence has received a warning from a friendly alien race about the dangers of overfishing. They warned the world governments that if they don't stop the destructive processes to the ocean's eco-system, the ocean's intelligence, commonly known in mythology as Poseidon, would strike back at humanity causing horrible tsunamis, hurricanes and other cataclysms.
This could be a follow up print from WWF:

inspired by: