Stat: $2.5 trillion—The estimated GDP of the ocean, according to a 2015 report by the World Wildlife Fund, making it the seventh-largest economy in the world.

Story: In this episode, we speak with Ashlan Cousteau and Philippe Cousteau Jr., who, inspired by the legacy of Philippe’s grandfather, undersea explorer Jacques Cousteau, have dedicated their careers to ocean conservation. They discuss how they’re continuing that legacy through their work with EarthEcho International and educating the next generation about the vital role that the ocean plays in our planet’s health and the global economy. We also hear from a member of EarthEcho’s OceanEcho 30x30 fellowship, Salma Macías Torres, from Bahía de Los Ángeles, Mexico, about her efforts to engage youth to build a sustainable future for our ocean.