Divers who showed up in the Maldives
within a month after reading our travel
correspondent’s comments in the August,
1998, issue of Undercurrent were caught
wondering if they had visited the same
place they’d just read about. In a short
month’s time, the warming waters of El Niño had devastated the country’s
hard corals. Rosemary Heil (Oakland CA), who was there in September
(just after our reviewer), estimated that as many as 90 percent of the hard
corals had been bleached out.
In January, Undercurrent reader Peter Louwerse (Switzerland) traveled
  to Baa Atoll northwest of Male, an area that until recently was only
  accessible by live-aboard. He found water that had reached temperatures
  as high as 27° C. (80.6° F.) and masses of dead coral. All was not doom
  and gloom, however: the massive schools of fish, turtles, dolphins, and
  reef sharks that are the Maldives’ main drawing card were still in abundant
  supply.  
Other areas that have been hit hard with coral bleaching in past El
  Niño years have managed to recover within a few years. Let’s hope that
  this current devastation will reverse itself as well. In the meantime, we will
  try to track the recovery of the Maldives and the other reefs around the
  world to keep you updated.