Muddy Waters: Life and Death on the Great Barrier Reef

By 2010, forty per cent of the world's coral reefs may be dead. By 2030, half of the Great Barrier Reef may be gone. Muddy Waters journeys to the sugarcane plantations of north Queensland and into the underwater world of the Great Barrier Reef in an effort to discover what is putting one of the world's greatest natural treasures under threat.