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The Dark Oxygen Discovery: A Game Changer for Deep Sea Mining?

How To Protect The Ocean

Release Date: 07/31/2024

US Opens Up Marine Protected Areas to Fishing: What This Means for Ocean Conservation show art US Opens Up Marine Protected Areas to Fishing: What This Means for Ocean Conservation

How To Protect The Ocean

Fisheries: In this episode, we see the surprising news that the U.S. government is opening up parts of its marine protected areas (MPAs) to commercial fishing. This rollback of protections in the Pacific Remote Islands Marine National Monument has sparked debate about the future of sustainable fisheries and marine biodiversity. Ocean: We explore what this decision signals for global ocean governance and why it could undermine years of conservation progress. Focusing on political motivations and international implications, we ask the hard questions: Are MPAs truly protected if they can be so...

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Ocean conservation is more than a job—it’s a calling. In this episode, we sit down with McKenzie Margereth, known online as McKnsea, who shares her inspiring journey of making bold career decisions in marine biology while becoming a powerful voice for science communication on social media. Her story highlights the challenges and triumphs of balancing a full-time role in marine science with a passion for educating the public about the ocean. Science communication becomes a lifeline when it’s driven by love for the sea. McKenzie opens up about the emotional and professional toll of...

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Coral restoration is often seen as a beacon of hope for our oceans—but are we putting too much faith in it? In this episode, we dive into why coral bleaching has become an annual event, especially on the Great Barrier Reef, and whether restoration can keep up with the pace of climate change. We explore what recurring stress events mean for the long-term survival of reefs and how restoration, while helpful, might be insufficient if larger systemic issues like warming seas and pollution aren’t addressed. Restoration is discussed not just as a solution, but as a strategy that needs to be...

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How To Protect The Ocean

Rebuilding fisheries in Canada: Capelin biomass is only at 16% of its pre-collapse level, which spells disaster for northern cod's recovery. In this episode of How to Protect the Ocean, host Andrew Lewin breaks down the troubling state of Canada’s east coast fisheries. With DFO ignoring science-based recommendations, capelin is being harvested despite dangerously low numbers—and the ripple effects are hurting northern cod and entire coastal ecosystems. Northern cod cannot recover without capelin, their primary prey, yet management plans still treat these species separately. Andrew explores...

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Shark Communication: Graduate Studies, Sharks Science, and TikTok with Kenzie Horton show art Shark Communication: Graduate Studies, Sharks Science, and TikTok with Kenzie Horton

How To Protect The Ocean

Shark communication is critical in changing their "man-eating" reputation from the movie Jaws. Sharks need protection so telling people about the wonders of sharks is essential. Marine biology is more than just a job — it’s a lifestyle driven by passion and purpose. In this episode of How to Protect the Ocean, host Andrew Lewin speaks with marine biologist Kenzie Horton, who shares how her love for the ocean shaped her career. Based in Florida, Kenzie juggles a full-time role in state government, a master’s degree researching white sharks, and a growing platform on TikTok where she busts...

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How To Protect The Ocean

De-extinction is no longer just science fiction. In this episode, we dive into the controversial concept of bringing back extinct species—specifically the dire wolf—using cutting-edge genetic engineering. Inspired by the headline-grabbing efforts to resurrect woolly mammoths, scientists are now exploring how DNA from ancient canids could be used to reintroduce this Ice Age predator into modern ecosystems. Genetic engineering plays a central role in this story. From piecing together fragmented DNA to editing modern genomes, researchers face significant scientific, ethical, and ecological...

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How To Protect The Ocean

Intersex marine mammals are an exceptionally rare topic in marine biology, and in this episode, we dive into a groundbreaking discovery of an intersex southern right whale. The whale, sampled in 1989, was recently found to possess XY chromosomes through genetic testing. This revelation opens up new conversations about sex differentiation in marine species and the complexities of whale biology that scientists are only beginning to uncover. Southern right whale research has long been essential to ocean conservation, but this case adds an entirely new layer. Through a discussion of how genetic...

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Why the US Might Start Deep Sea Mining (And What It Means for the Ocean) show art Why the US Might Start Deep Sea Mining (And What It Means for the Ocean)

How To Protect The Ocean

Deep sea mining is making headlines as the United States considers allowing operations within its boundaries. In this episode, Andrew Lewin dives into a recent development involving a Canadian company, The Metals Company, that is pushing to mine the deep sea in US territory. What does this mean for the environment, international law, and ocean conservation? The US government’s stance on deep sea mining could shift the global conversation around ocean resource extraction. Andrew explores the political, environmental, and legal implications of this move, the role of the International Seabed...

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How To Protect The Ocean

Fisheries are more than just the act of catching fish—they’re tightly woven into the fabric of science, activism, and community livelihoods. In this episode of How to Protect the Ocean, we speak with Eva van Heukelom about the many layers of fisheries management and how sustainable practices are shaped not just by data and tradition but by the legal frameworks that support them. Law plays a central role in determining how ocean resources are accessed, protected, and managed. Eva walks us through how international agreements, national regulations, and local community rights all intersect...

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Andrew Lewin dives into the controversial topic of deep-sea mining and its implications for the environment. He questions whether mining the deep sea for metals to create electric vehicle batteries truly benefits the planet or if there are better alternatives. The discussion raises concerns about the potential impact on the ocean and the need to explore alternative solutions for a sustainable future.

Link to article: https://www.sciencealert.com/mysterious-dark-oxygen-discovered-at-bottom-of-ocean-stuns-scientists

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Deep sea nodules, highly sought after for mining due to their valuable metal content, have recently been discovered to play a crucial role in oxygen production in the deep sea. Composed of cobalt, manganese, and nickel, these nodules form a polymetallic matrix that can generate a significant voltage when clustered together. This voltage is essential for splitting oxygen from water, a process that typically requires light for photosynthesis to occur. However, in the dark depths of the deep sea where light does not penetrate, these nodules serve as natural geobatteries, generating the necessary voltage to produce oxygen.

The discovery of oxygen production by deep sea nodules challenges the conventional wisdom surrounding deep sea mining. While deep sea mining has been promoted as a means to extract valuable metals for various industries, the potential impact on oxygen production in the deep sea raises significant concerns. The presence of these nodules not only supports diverse ecosystems but also contributes to the geochemical processes that sustain life in the deep sea.

The revelation that deep sea nodules are involved in oxygen production underscores the complexity of deep sea ecosystems and the interconnectedness of marine life. The implications of deep sea mining on oxygen production and ecosystem health must be carefully considered in light of this new information. The balance between economic interests and environmental conservation becomes even more delicate when the fundamental role of these nodules in oxygen production is taken into account.

This discovery prompts a reevaluation of the necessity and sustainability of deep sea mining practices. It raises questions about the long-term consequences of extracting nodules from their natural habitat and the potential disruption to oxygen production and deep sea ecosystems. As we continue to explore and understand the deep sea, it is essential to prioritize the protection of these vital ecosystems and consider alternative approaches to resource extraction that minimize harm to the environment.

The discovery of "dark oxygen" in the deep sea, as discussed in the podcast episode, has significant implications for the ongoing debate surrounding deep-sea mining. The revelation that certain nodules sought after for mining are actually contributing to oxygen production in the deep sea challenges the perceived necessity of deep-sea mining for metals like cobalt, manganese, and nickel.

The presence of these nodules, which create a polymetallic matrix capable of producing oxygen, raises questions about the trade-off between resource extraction and environmental conservation. Deep sea mining companies have invested substantial resources in developing technologies to extract these nodules efficiently. However, the newfound understanding of the role of these nodules in oxygen production highlights the potential consequences of disrupting deep-sea habitats for mining purposes.

The episode emphasizes the importance of considering the impact of deep-sea mining on biodiversity and ecosystem functioning. Areas rich in these nodules exhibit higher biodiversity levels compared to mined regions, indicating the potential ecological harm caused by mining activities. The interconnected nature of deep-sea ecosystems underscores the need to evaluate the long-term effects of deep-sea mining on species dispersal and habitat connectivity.

Furthermore, the discovery of "dark oxygen" challenges the traditional understanding of oxygen production in the absence of sunlight. This raises questions about the origins of aerobic life and the evolution of complex organisms in oxygen-deprived environments. The implications of disrupting the natural processes that contribute to oxygen production in the deep sea underscore the need for a more comprehensive assessment of the environmental costs and benefits of deep-sea mining.

In conclusion, the revelation of "dark oxygen" in the deep sea prompts a reevaluation of the necessity and consequences of deep-sea mining. It calls for a balanced approach that considers both the economic benefits of resource extraction and the preservation of deep-sea habitats and biodiversity. The ongoing debate surrounding deep-sea mining must now incorporate the newfound knowledge of oxygen production in the deep sea to make informed decisions about the future of deep-sea exploration and conservation.

The discovery of oxygen-producing nodules in the deep sea sheds light on the intricate interconnectedness of ocean ecosystems and the potential consequences of deep sea mining on marine life dispersal and population dynamics. The presence of these nodules, sought after for mining due to their metal content, plays a crucial role in providing oxygen in the dark depths of the ocean where photosynthesis is not possible.

The episode discusses how these nodules, composed of cobalt, manganese, and nickel, create a polymetallic matrix that can produce enough voltage to split oxygen from water without the need for sunlight. This process not only sustains oxygen levels in the deep sea but also supports a more biodiverse community of animals in areas where these nodules are present. The higher diversity of fauna in nodular-rich regions compared to unmined areas underscores the importance of these nodules in maintaining healthy deep-sea ecosystems.

Furthermore, the episode raises questions about the potential impacts of deep-sea mining on marine life dispersal and population dynamics. It highlights the interconnected nature of ocean ecosystems, where organisms rely on various mechanisms, such as larval dispersal, to populate different areas of the deep sea. The removal of nodules through mining could disrupt these natural processes, leading to changes in population dynamics and potentially affecting the overall health and resilience of deep-sea ecosystems.

Overall, the presence of oxygen-producing nodules in the deep sea serves as a reminder of the delicate balance within marine ecosystems and the need for careful consideration of the impacts of human activities, such as deep-sea mining, on these interconnected systems. The episode prompts a critical examination of the trade-offs between resource extraction and ecosystem conservation in the deep sea, emphasizing the importance of sustainable practices to protect the biodiversity and functioning of these unique and fragile environments.