ATLANTA – In a special half-hour documentary titled Race to Save the Reef, CNN’s Ivan Watson dives underwater to see the impact of climate change on Australia’s Great Barrier Reef – damage, which one expert claims, could trigger a “mass extinction”.   CNN meets Charlie Veron, the world's foremost expert on coral reefs, who has spent 45 years of his life diving in the Great Barrier Reef and has personally discovered 20 percent of the world’s coral species.   Veron has been … [Read more...] about CNN witnesses damage to Great Barrier Reef in special documentary