More in depth about Coral Reef Loss

I found alot more out about Coral Reefs on Global Issues.  here are some more facts:

Status of Coral Reefs Around the World, 2004 also notes (p. 21) that “The major emerging threat to coral reefs in the last decade has been coral bleaching and mortality associated with global climate change.”
As explained by Rob Painting on the popular Skeptical Science blog, bleaching can occur for a number of reasons such as

• Ocean acidification
• Pollution
• Excess nutrients from run-off
• High UV radiation levels
• Exposure at extremely low tides
• Cooling or warming of the waters in which the coral reside  
• That is what bleached coral looks like.  Very dead.