Bill in a Nutshell My research is in biogeochemistry and marine photochemistry, examining its integrated role in carbon and trace gas cycling, ocean optics, reactive oxygen species and metal redox chemistry, and the biological consequences of all this. I blend lab and field studies with satellite imagery to calculate photochemical rates on global to regional scales. By following interesting connections and challenging research topics over my career, I have been an invertebrate biologist, a trace metal chemist, an aquatic photochemist, a soil scientist, an optical oceanographer, a biogeochemist, an ocean-atmosphere exchange specialist, a climate scientist and a satellite oceanographer. I am interested in what is interesting and the ocean-atmosphere system provides more than one could ever want in this regard. Research Areas: Chemical Oceanography Biogeochemistry Climate Change