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...
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Bill Gates & Climate Change: Why His Latest Comments Shocked the Climate Community
How To Protect The Ocean
Bill Gates and Climate Change have become a trending topic after the billionaire philanthropist argued that the world is too focused on cutting carbon emissions and not focused enough on improving human welfare. In this episode, I unpack what Gates said, why it caused such a reaction, and how his argument connects to decades of work in climate justice and climate equity. Many climate justice organizations have long emphasized that people struggling with hunger, illness, or poverty cannot prioritize environmental action until their basic needs are met. Gates’s claim—that people fighting to...
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Are These Whales Doing Better?
How To Protect The Ocean
North Atlantic right whales have been teetering on the edge of extinction for decades, with fewer than 400 individuals left. But recent reports hint at a small sign of hope: the population may finally be stabilizing, or even slightly increasing. In this episode, Andrew Lewin explores what that really means. Conservation efforts, from slower ship speeds to ropeless fishing gear, are starting to make a difference—but are they enough to ensure these whales survive? Andrew breaks down the latest science, the hard numbers from NOAA’s newest technical memo, and why every calf, especially every...
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Art and Ocean Science: How Creativity Reveals the Deep Sea’s Hidden Stories
How To Protect The Ocean
Art and Ocean Science are merging in ways that bring new life to marine research and conservation. In this episode of How to Protect the Ocean, host Andrew Lewin speaks with the creative minds behind Ocean Networks Canada’s “Surfacing Secrets” project, a groundbreaking collaboration where sculptors, theatre directors, and scientists explore how art can help people see, feel, and understand the ocean in fresh ways. Ocean creativity takes center stage as guests share how sculpture can represent underwater sounds, theatre can transform data into emotion, and how cross-disciplinary...
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Nova Scotia Whale Sanctuary Approval: What It Means for Captive Whales and Ocean Conservation
How To Protect The Ocean
Nova Scotia Whale Sanctuary has officially received provincial approval, marking a monumental step toward creating Canada’s first ocean refuge for retired whales. In this episode of How to Protect the Ocean, Andrew Lewin explains how this decision moves the Whale Sanctuary Project closer to reality, what challenges remain before the sanctuary opens, and why this could change the way the world cares for marine mammals. Andrew also dives into how the Whale Sanctuary Project built the foundation for this historic milestone through years of environmental assessment, scientific planning, and...
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.