Yes, but they didn't mention another problem, that of the Crown of Thorns starfish also killing corals in the Barrier Reef. Seems that pollution is causing the waters to produce more algae, meaning more of the COT starfish are surviving. Whereas there used to be an 11 year period between infestations, giving the corals time to regenerate, the infestations are coming closer and closer together. And, of course, where you have manmade idiocy destroying corals, you have the greater chance of tsunami's. That's why the tsunami a year ago was so devastating, because man destroyed most of the reefs in that region which protected the coasts. Yes, we are doing a bang up job maintaining the ecosystem. And btw, I'm no environmentalist nut, just stating facts.