Here is a link to an article citing a recent study about the effects of pollution on the health and status of coral reefs. Some of the numbers are pretty disturbing.
Click here to read the Caribbean Net News Article
I found the story of Cancun to be pretty interesting... An undisturbed and pristine area presents an opportunity for economic growth if used for tourism. Development ensues and tourists follow. However, the development and tourists damage the very resource that started the process in the first place. Clearly there is a need for a balance. Without proper management, the area will be left without resource quality and without tourist revenues.
Applicable economic theory?
What information needs to be gathered first?