Living Legend Dr. Sylvia Earle Talks About "Ocean" And What We All Need To Do

Maria chats with Dr. Sylvia Earle, one of the top experts in the world on ocean science and conservation. Dr. Earle's love letter to the ocean is out: "NATIONAL GEOGRAPHIC OCEAN: A Global Odyssey" They talk about the book, the ocean, and what we all can do before it's too late.<br /> Learn more at mission-blue.org.