Spectacular rebirth of Belize's coral reefs threatened by tourism and development

Report reveals improvement but also details danger posed by tourist-generated pollution, oil extraction and climate change

Just below the surface of the turquoise sea, coral flutters majestically amid schools of puffed up porcupinefish and fluorescent blue and yellow angelfish.

The gangly staghorn and fanning elkhorn corals are thriving in swimming distance of Laughing Bird Caye, a tiny Caribbean sandy islet in southern Belize, thanks to a restoration project that is yielding striking results.