William S. and Carelyn Y. Reeburgh Lecture: Oceanic Dissolved Organic Carbon: The World Tour

At 660 PgC, organic matter dissolved in the ocean serves as one of Earth's major carbon reservoirs. The macro dynamics of the pool (its production, removal and sequestration) have been characterized over the past few decades, in large part as a consequence of observations of its spatial and temporal variability in the global ocean. This lecture will tour the ocean through those dynamics, using data from all the ocean basins to explore sources, sinks and controls. It is at the scale of micro dynamics (i.e., molecular composition and transformations) that the pool continues to hide its nature, with the community responding appropriately.