Aerosols, including those from oceanic emissions, are a key part of the hydrologic cycle. Our recent results also indicate a large impact of Dimethyl Sulfide (DMS) on sea-ice in the CESM model, which will also be important for the other two primary ACME science drivers (cryosphere and biogeochemistry). Furthermore, the largest uncertainty in the 20th century anthropogenic forcing, and hence in the climate sensitivity, comes from uncertainty in the natural sulfur emissions (DMS + Volcanos) [Carslaw et al., Nature, 2013]. Note that the ACES4BGC marine aerosol capability is the most complete approach in the entire scientific community, and ideally suited to account for and investigate these issues.