"Bottom line for me is that it was a great experience retracing my steps through this part of the world. It only reinforces what I sort of knew anyway about the ocean temperature, which has been averaging up here about 88 degrees F. The fish have disappeared. The corals are bleaching and dying.
The water is getting acidified. The local people are doing the best that they can, but there is not much they can do about some of these big, big changes that are taking place. The efforts are going to have to take place on a much larger scale."
The photo shows him sailing out from the Golden Gate Bridge in San Francisco this July, heading for The Marquesas Islands. His blog on the trip: http://drsamsblog.com/