Sad to hear all of that. Coastal erosion is a major concern for us in South Louisiana. There have been great steps taken here to correct this but it could be too late.
I am a Landscape Architect in south Louisiana. I am well versed in this topic. In fact, I recently employed an intern doing his masters thesis on this subject. I am also close to Louisiana State University and could suggest a student study to the faculty.
I am considering a visit and possible move to Belize. I lived for some time among the mangroves in the Florida Keys and understand that they are the only reason that the Keys remain.
If there is anything I could help with, it would be my pleasure.