What’s behind your canned tuna? The shocking truth supermarkets never tell you
How To Protect The Ocean
Supermarket tuna raises a disturbing question: What’s behind your canned tuna? In this episode, you uncover the hidden human cost of the global tuna industry, including the devastating story of fisherman Deby Putra Bunanda, whose health collapsed after months at sea supplying tuna for major supermarket brands. His experience reveals a deeper and darker truth about forced labor, long deployments without oversight, and the human suffering behind one of the world’s most common foods. The surprising emotional insight: Bunanda returned home barely able to walk or speak after seven months at...
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COP30 Belém: The Hidden Decisions That Could Change the Ocean Forever
How To Protect The Ocean
Ocean crisis: COP30 Belém exposed massive gaps in climate action, and the ocean will carry the burden. In this episode we break down the missing fossil fuel commitments, the weak climate finance language, and the two track political system that threatens to push ocean science into the background. These decisions matter because the ocean is already absorbing the heat and carbon that our climate system cannot handle. Climate justice: Indigenous communities and coastal nations called for a stronger voice at COP30 but were pushed aside, even during protests inside the venue. One of the most...
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How Deep Sea Mining Could Break the Ocean’s Most Important Wildlife Highways
How To Protect The Ocean
How Deep Sea Mining could permanently disrupt the ocean’s most important animal routes, and most people have never thought about it. This episode asks the critical question: what happens when mining operations collide with species that rely on vast migratory pathways to survive? We break down the science in a way that makes the stakes impossible to ignore, from whale communication and sea turtle navigation to seabird feeding routes and shark migrations. Whales: Our guest, Dr. Andrew Thaler, explains how mining doesn’t just damage the seafloor. It sends noise, light, sediment, and pollution...
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Fish Farm Clean Up: What they pulled from a Forty Ton Ghost Farm will SHOCK you!
How To Protect The Ocean
Fish Farm Clean Up reveals the hidden reality beneath a quiet coastline in Methana, Greece, where a ghost fish farm left behind more than forty tons of plastic cages, nets, metal frames, pipes, and even sunken boats. What looked peaceful on the surface hid a toxic underwater scrapyard that had been breaking apart and polluting the Saronic Gulf for years. Shocking Footage from this cleanup shows how abandoned aquaculture sites become long-term pollution hotspots. The divers, Healthy Seas Foundation, and the Athanasios C. Laskaridis Charitable Foundation worked together to cut, lift, tow, and...
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Whales don’t get cancer: How bowhead whale DNA could change human health
How To Protect The Ocean
Whales don’t get cancer as often as you might expect, and in this episode you learn how the bowhead whale’s unique DNA repair system is helping scientists understand cancer prevention and healthy aging. This Arctic giant lives more than 200 years, grows to airplane size, and still avoids the runaway mutation patterns that lead to tumors in other species. Whales don’t get cancer at high rates because their cells repair DNA damage with remarkable accuracy, and recent studies show that bowhead whales have powerful repair proteins like CIRBP that might someday guide cancer research. You will...
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Fish feed in aquaculture, understanding what goes into feeding farmed fish
How To Protect The Ocean
Fish feed in aquaculture is at the center of a complicated global story that most people never hear about. In this episode, Andrew sits down with marine biologist and policy expert Marine Cusa to explore the hidden world of fishmeal, fish oil, feed ingredients, and the surprising connections between aquaculture, wild fisheries, West African communities, and even penguin populations in Antarctica. Marine breaks down what actually goes into the pellets fed to farmed fish, why transparency is lacking in the supply chain, and how her genetics research is uncovering the real species being...
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Orcas vs Great White Sharks: How Killer Whales Are Changing Shark Populations
How To Protect The Ocean
Orcas vs Great White Sharks is more than a dramatic headline—it’s a sign of how ocean ecosystems are shifting before our eyes. New drone footage shows orcas in the Gulf of California attacking and killing juvenile great white sharks in what scientists believe are nursery zones. The footage, captured in 2020 and 2022, reveals orcas flipping young sharks onto their backs, inducing tonic immobility, and surgically removing their livers—a precise and efficient hunting technique that may reshape predator-prey dynamics. For years, scientists have known about great white shark nurseries, but...
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Seagrass Decline in Moreton Bay: What Long-Term Research Reveals About Ocean Change
How To Protect The Ocean
Seagrass meadows are among the most vital yet overlooked ecosystems on our planet. In this episode of How to Protect the Ocean, Andrew Lewin explores a new 19-year study from Moreton Bay, Australia, which shows that seagrass coverage and diversity are declining over time despite short-term recovery periods. This long-term research reveals that while short-term studies might show seagrass bouncing back after storms or floods, the bigger picture tells a story of gradual loss and ecological transformation. The episode also highlights why this decline matters: seagrass meadows are nurseries for...
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Animals Affected by Climate Change: How Seabirds Reveal the Hidden Impacts of Warming Oceans
How To Protect The Ocean
Animals affected by climate change are showing us how fragile our ecosystems have become. In this episode of How to Protect the Ocean, host Andrew Lewin speaks with Dr. Helen Killeen, a marine ecologist whose research connects seabird reproduction to shifting ocean temperatures, prey diversity, and climate pressures across the northern hemisphere. Animals affected by climate change, from seabirds in the Arctic to those in the Pacific, serve as living indicators of ocean health. Helen explains how changes in prey diversity and warming oceans disrupt seabird breeding success, what this means for...
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Marine Conservation Projects: Why Recent Wins for Endangered Species Matter
How To Protect The Ocean
Marine Conservation Projects are driving real wins: green sea turtles downgraded to least concern in many regions, North Atlantic right whales showing a small but meaningful uptick, and a new vaquita calf sighting offering hope. In this episode I explain the common thread behind these stories, targeted local projects, science monitoring, and laws that actually get enforced, and I share practical ways you can support the people doing the work. From night patrols that protect turtle nests to whale disentanglement teams and community programs in Mexico that replace gillnets, you will hear how...
info_outlineAndrew Lewin discusses the potential of replacing plastic with a sustainable substance found in shellfish. Imagine a world where everyday items are eco-friendly and do not harm the environment when disposed of. Join us to explore this innovative solution to plastic pollution and learn how we can all contribute to a healthier ocean.
Link to article: https://www.anthropocenemagazine.org/2024/03/experts-unlock-the-vast-potential-of-seafood-waste-without-the-toxic-after-effects/
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Chitin, a substance found in the shells of seafood shellfish, has emerged as a promising alternative to traditional plastic. Researchers at the University of Connecticut have developed a method to extract chitin from crabs, lobsters, and other crustaceans. Historically, chitin extraction has been challenging due to the use of harmful substances like hydrochloric acid, which can harm the environment. However, the researchers have found a more sustainable approach using non-toxic and biocompatible byproducts from the biodiesel industry.
This breakthrough is significant because chitin-based products could offer a more environmentally friendly solution to plastic pollution. Chitin-based materials have the potential to break down more easily in the environment, reducing the harmful impact on ecosystems. With approximately six million tons of seafood waste generated in the US alone each year, there is a vast potential source of chitin that could be repurposed into sustainable products.
The innovative extraction process involves using organic acids like glycerol, choline chloride, lactic acid, or malic acid to separate chitin from the shellfish material. This method not only makes chitin extraction more efficient but also eliminates the use of corrosive substances that harm the environment. The resulting chitin can be used as a biodegradable replacement for petroleum-based plastics, offering a more sustainable option for various products.
Furthermore, the researchers are exploring additional applications for chitin, such as turning salvaged chitin into nutrient-rich fertilizer for crops. This demonstrates the versatility and potential value of chitin as a sustainable resource. The episode emphasizes the importance of investing in innovative research projects like this to drive positive change and reduce our reliance on fossil fuels.
Researchers have made a groundbreaking discovery in finding a more environmentally friendly way to extract chitin from shellfish, making it a viable option for plastic production. Traditionally, extracting chitin from shellfish has been a challenging and polluting process, involving the use of harmful substances like hydrochloric acid. However, a lab at the University of Connecticut has found a new method that utilizes non-toxic, biocompatible, and cost-effective byproducts of the biodiesel industry, such as choline chloride, glycerol, and organic acids.
This innovative approach involves creating a solvent rich in hydrogen bonds that can break down the original bond in the shellfish material, enabling the separation and release of chitin from other compounds in the shells' complex matrix. This method not only makes the extraction process more efficient but also eliminates the harmful environmental impacts associated with traditional extraction methods.
With this new extraction process, chitin can now be obtained sustainably from the shells of crabs, lobsters, crustaceans, and shrimp. This discovery opens up a world of possibilities for using chitin as a biodegradable replacement for petroleum-based plastics. The potential applications of chitin in plastic production are vast, offering a more sustainable alternative that breaks down harmlessly in the environment.
Furthermore, researchers are exploring additional uses for chitin, such as turning salvaged chitin into a nutrient-rich fertilizer for crops. This demonstrates the versatility and value of chitin as a resource that can be repurposed into valuable products, contributing to a more circular and sustainable economy.
Overall, this discovery represents a significant step towards reducing plastic pollution and transitioning towards more eco-friendly alternatives in plastic production. By investing in innovative research like this, we can pave the way for a more sustainable future and reduce our reliance on fossil fuels for plastic manufacturing.
Governments play a crucial role in driving innovation towards more sustainable practices and reducing reliance on fossil fuels. As discussed in the podcast episode, investing in innovative projects like the use of chitin to create sustainable products presents a significant opportunity for governments to lead the way in environmental conservation. Chitin, extracted from seafood waste, offers a biodegradable alternative to petroleum-based plastics, addressing the pressing issue of plastic pollution.
By investing in research and development of chitin-based products, governments can support the transition towards a more sustainable economy. This investment not only fosters technological advancements but also promotes job creation and economic growth in emerging industries focused on sustainability. Furthermore, the utilization of chitin in various applications, such as packaging and fertilizers, demonstrates the versatility and potential of this natural resource.
Governments should prioritize funding for projects that explore innovative solutions like chitin-based products. By supporting these initiatives, policymakers can demonstrate a commitment to environmental stewardship and climate action. Additionally, investing in sustainable alternatives to fossil fuels aligns with global efforts to mitigate climate change and reduce greenhouse gas emissions.
Overall, government investment in projects utilizing chitin and other sustainable materials is essential for driving the transition towards a more environmentally friendly and sustainable future. By supporting research, development, and implementation of these innovative solutions, governments can play a pivotal role in creating a more sustainable and resilient society for future generations.