Climate Change Actions Using Sargassum and Black Fly Larvae
Release Date: 12/23/2024
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UN Ocean Conference 2025: Big Promises, Global Funding, and the Push for Ocean Protection
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UNOC 2025 brought major headlines in ocean conservation—from billions pledged to protect biodiversity, to significant movement on the High Seas Treaty. In this episode, Andrew Lewin returns from the UN Ocean Conference in Nice, France, with a firsthand account of what was announced, what was promised, and what might actually happen. Ocean finance was a hot topic this year. Governments, development banks, and private investors pledged record-breaking funding to tackle everything from plastic pollution to marine ecosystem restoration. But Andrew dives into why these billions still fall...
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Why Cayman Islanders Voted to Stop a Cruise Ship Pier and Save Their Reef
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Why Cayman Islanders Voted against a massive cruise ship pier is a rare and powerful story of reef protection over profit. In this episode of How to Protect the Ocean, Andrew Lewin unpacks the bold decision by Cayman citizens to reject a development project that would have severely damaged their coral reef ecosystem. The vote sent a clear message: the long-term health of the ocean matters more than short-term tourism dollars. Why Cayman Islanders Voted is also a reminder that grassroots action can be effective. Andrew explores how this vote happened, what it means for ocean conservation around...
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How US Climate Policy Affects Renewable Energy and Ocean Conservation
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Climate policy in the U.S. has taken a wild ride in recent years. In this episode of How to Protect the Ocean, I speak with Chris Moyer, founder of Echo Communication Advisors, about the turbulent shifts in federal policy—especially during the Trump and Biden administrations, and how these shifts have disrupted progress in renewable energy. We examine the implications of these changes for energy development, environmental protection, and the impact of public messaging on political will to act. Renewable energy isn’t just a technological challenge—it’s also a communication challenge....
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Ocean Networks Canada (ONC) began as a bold idea—to create a real-time, always-on listening system for the ocean. In this episode, Surfacing Secrets: Mavericks and Visionaries, we go behind the scenes with the people who made that idea real. From laying cables deep in the Pacific to building trust with research institutions and government partners, this is the untold story of how a world-leading ocean observatory came to life. Our guests—Kate Moran (President and CEO of Ocean Networks Canada), John Delaney (Professor Emeritus, School of Oceanography, University of Washington), and...
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Ocean conservation is evolving—and The Undertow is leading the way by merging storytelling, technology, and community. In this episode, host Andrew Lewin is joined by Amanda Horn and Serena Nguyen to unveil The Undertow, a new platform designed to supercharge ocean action by connecting people from all backgrounds to meaningful environmental impact. Innovation lies at the heart of The Undertow’s mission: to create 10 million new ocean connections and unlock $5 million in tangible ocean action by World Ocean Day 2030. Whether you’re a marine biologist, marketer, artist, or someone curious...
info_outlineIn this episode of the "How to Protect the Ocean" podcast, host Andrew Lewin interviews Dr. Annalisa Bracco, a professor at Georgia Tech specializing in ocean and climate dynamics. The discussion centers around innovative climate solutions, moving away from the typical focus on the negative impacts of climate change.
Key Climate Solutions Discussed:
Sargassum Management:
Problem: Since 2011, there have been significant blooms of sargassum in the tropical Atlantic, impacting beaches in the Caribbean and Gulf of Mexico. These blooms require costly cleanup efforts, amounting to approximately $300 million per year.
Solutions:
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Sinking Sargassum: Research is being conducted to explore the feasibility of sinking sargassum to sequester carbon. This involves understanding the ecological impacts and ensuring that the carbon captured is not released back into the atmosphere.
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Biofuel Production: Collaborations with engineers and biologists are underway to convert sargassum into biofuels. One approach involves using black fly larvae, which can efficiently consume sargassum and accumulate lipids for biofuel extraction.
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Bricks from Sargassum: A small business in Mexico is creating bricks from dried sargassum, which are reported to be more resilient to storms than traditional building materials.
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Coral Reef Connectivity:
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Dr. Bracco's team is using machine learning to study the connectivity among coral reefs, which is crucial for understanding how larvae disperse and how healthy ecosystems can support one another.
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The research highlights the dynamic nature of coral ecosystems, particularly in the Pacific, where certain areas can recover from bleaching events due to the exchange of larvae. In contrast, the Atlantic faces challenges due to pollution and overfishing, which hinder recovery.
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Interdisciplinary Collaboration:
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The episode emphasizes the importance of interdisciplinary work in addressing climate issues. Dr. Bracco collaborates with experts from various fields, including biology, engineering, and computer science, to develop comprehensive solutions to climate challenges.
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Overall, the episode provides a hopeful perspective on climate solutions, showcasing innovative approaches to managing ocean health and addressing the impacts of climate change.
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