Back to basics I: ocean circulation, seawater chemistry, Back to basics II: trace metal and nutrient distribution patterns, Global carbon cycle: characterization, budgets, DOM, Dissolved organic matter: sources, sinks, reactivity, Biogeochemical tools: isolation of DOM, bulk analysis, chemical markers, DOM and dissolved black carbon I: fire on the continents as a driver for marine geochemical processes, and general aspects of DOM turnover, DOM and dissolved black carbon II: fire on the continents as a driver for marine geochemical processes, and general aspects of DOM turnover, Ocean acidification: effect of increasing atmospheric CO2 on the marine carbon cycle, Iron fertilization: the climatic relevance of iron in the ocean, geoengineering examples, no class, Trace elements: trace element distributions and behavior in the ocean, Toxic trace elements in coastal oceans: anthropogenic contamination in the coastal zone, Metal isotopes: use of metal isotopes as marine tracers, Gas exchange: Gas solubility, gas transfer velocities, field techniques, DOM and dissolved black carbon II: fire on the continents as a driver for marine geochemical processes, and general aspects of DOM turnover trash