It is too bad there are so few scientists with integrity I would like to know what is really causing coral bleaching. I know Cousteau noticed it when he went back to some reefs he visited years before. They were now barren. Is it dying in some places and thriving in others?
Some recent reef destruction in the Caribbean was traced to sand and dirt wafting in from the Sahara.
Wikipedia admits that most recent coral death is caused by El Nino events. The sea temperature rises so much above normal that the coral bleaches and dies. Some areas had 80% die off.
My guess would be something completely natural such as disease.
Recently it was in the news here in Ohio that a fungus was decimating the bat population.
So I would guess that a perfectly natural disease like a virus is working its way through these coral beds.
But for these scientific prostitutes the pay is better and there is less work involved if they claim that global warming is killing off the coral.