On October 24, 2024, the Academy’s San Diego Committee hosted a program on “Health and Our Oceans,” which featured atmospheric chemist and Academy member Kimberly A. Prather. Professor Prather discussed newly identified critical connections between rising pollution levels in coastal oceans and rivers and their far-reaching impacts on air quality and human health. She also described a recent study on local air and water quality issues in southern San Diego. The program included introductory remarks from Susan Taylor, Distinguished Professor of Pharmacology, Chemistry & Biochemistry at UC San Diego School of Medicine, and Margaret S. Leinen, Director of Scripps Institution of Oceanography, Vice Chancellor for Marine Sciences, and Dean of the School of Marine Sciences at UC San Diego. An edited version of Professor Prather’s presentation follows.