Why an artist is submerging 22 'cars' off the coast of Miami

An artist is submerging 22 "cars" off the coast of Miami Beach to draw attention to the environmental restoration needed to rejuvenate South Florida's reef system. The "cars" are actually sculpted from eco-friendly marine concrete -- an effort to bolster the barrier reef system in an aesthetically pleasing way, according to project organizers. The installation, named "Concrete Coral" by contemporary artist Leandro Erlich, is one of the features of The Reefline, a 7-mile public underwater sculpture park that includes a snorkel trail along the hybrid reefs installed to fortify the reef system. Artificial reef systems have been popping up along U.S. coastlines in recent years in an effort to protect beaches from erosion and rising sea levels. But other artificial reefs are "really ugly," and