Reefs

A group of surfers has successfully blocked an environmentally-harmful beach dredging and repair project in Florida, at least temporarily. The project was meant to counteract beach erosion problems, but was protested over concerns about local reefs.
Mar 11, 2009   The New York Times
<p>Old subway cars are being dumped off the coast of Delaware, creating a manmade reef. Life is flourishing in this new underwater subway cemetery, but officials worry the reef may be too successful.</p>
Apr 12, 2008   The New York Times