Sea2Cloud relies on several sources of fundings, among which an ERC grant (PI Karine Sellegri, LaMP). Members of the OMTAB team are involved in the Sea2Cloud CNES project. In this framework, they provide large-scale biological products (concentrations of chlorophyll and particulate organic carbon, phytoplankton community composition) in an attempt to evaluate the impact of biology on marine aerosols and, thereby, cloud properties with feedback to the Earth’s climate.