Achieving a quantitative understanding of the key
biogeochemical-physical interactions and feedbacks between the ocean and the atmosphere and how marine biogeochemical cycles and ecosystems interact is a prerequisite to understand how this coupled system affects and is affected by climate and environmental change. Indeed attempts to predict the future global environment depend on a comprehensive understanding of how plankton biodiversity and biogeochemical cycling in the oceans affect the climate system, and of how changes in climate influence the structure and functional properties of oceanic ecosystems. This session calls for contributions related to experimental work at sea or in the laboratory, remote sensing studies, and modelling studies on the responses of key marine biogeochemical cycles, ecosystems and their interactions, to global change. Contributions dealing with exchange processes at the air-sea interface are also welcome.