Conversations host Harry Kreisler welcomes Sylvia A. Earle, Explorer-in-Residence at the National Geographic Society, for a discussion of her work as a research scientist, oceanic explorer, entrepreneur, and public educator. Tracing her intellectual journey, Earle talks about the influence of her formative years, her education, the importance of the ocean for life on earth, and the challenges of being both a scientist and a citizen concerned about the fate of the oceans. (#23047)