The ocean is a sink foranthropogenic carbon and a protein source for a significant fraction of theworld’s population. Despite its vast volume, the ocean is not immune to theeffects of anthropogenic climate change. Ocean acidification, oceandeoxygenation and ocean warming all affect the biogeochemical functioning ofmarine environments and may have feedbacks on the associated ecosystem servicesthat benefit humanity. In this module we will study the cycling of nutrientsand elements within the ocean, assess how these cycles are affected by ongoingclimate change, and evaluate whether or not there is potential for these cyclesto be artificially manipulated to help humanity address the challenges ofclimate change. A key skill developed in this module will be the ability tofind, read and review scientific papers at the cutting-edge of marine scienceresearch.