1. Keith Alverson is director of the Global Ocean Observing System and head of Ocean Observations and Services at the IOC of UNESCO, 1 rue Miollis, 75732 Paris, Cedex 15, France.
2. D. James Baker is a former undersecretary for Oceans and Atmosphere and administrator of the National Oceanic and Atmospheric Administration and is currently a consultant at the IOC of UNESCO.