25 years of coral bleaching 1991

Coral bleaching has probably gone one for 40-50 years or more, but is more noticeable and talked about today. My video from 1991 shows that it was already happening 25 years ago at Capricorn and Bunker Group (Lady Musgrave Lagoon) and that it is today very noticeable on many places, as can be seen in the end of the video.