Business Times: The past few months have brought in a raft of news about the health of the iconic Great Barrier Reef -- each one worse than the last. According to recent surveys, over 90 percent of the 1,400 mile structure has been affected by some level of coral bleaching -- an event that occurs when corals, stressed by rising water temperature and acidity, expel the symbiotic algae living within their tissues. This bleaching event, which is the worst in the reefs history, has killed 35 percent of its corals in...