This week, hosts Peter Ravella and Tyler Buckingham explore the fascinating world of Sargassum, a booming macroalgae that is creating new challenges and opportunities for existing coastal interests and future blue economy ventures. Joining the show is Brad Warren, the host of ASPN's Changing Waters podcast and president of the National Fisheries Conservation Center; and, Alyson Myers, the president of Fearless Fund, an organization dedicated to sustainable ocean-based energy and food system solutions. With Sargassum and other macroalgae (seaweed) biomass exploding, the Fearless team is working to pioneer the research and product development needed to create a market for harvesting this renewable resource. The possibilities are exciting, with products ranging from plant-based plastics, to green energy, and sequestered carbon.