SALT contributes to WP 4 that will 1) examine the uncertainties and knowledge gaps in relation to ocean acidification impacts and management options held by different scientific experts and government officials 2) identify and compare how these uncertainties and knowledge gaps are handled 3) compare enabling factors and difficulties in developing management options in face of uncertainties, and 4) analyze how knowledge exchange across experts, stakeholders and policy actors can generate knowledge about communication needs, research gaps and management options.