The term "Ghost Forests" sounds like something out of Scooby Doo (or is it just that I have been watching too much children's television these past few years?)
Actually, ghost forests are stands of dead trees, whole forests killed off by salt water intrusion as a result of earthquakes and/or tsunamis. Click here for a very good explanation of the possible causes of this phenomenon.
I've seen examples of ghost forests in places on the Washington coast as well as in the San Juans... the long-dead but still standing pillars are a reminder of life's impermanence. That what is true now may not be the same tomorrow and that sudden, drastic change is always a possibility.