How To Protect The Ocean

Andrew Lewin
  • 5.0 (3)
  • Nature

Dive into the Depths: Join Andrew Lewin on 'How to Protect the Ocean' – Your Gateway to Exclusive Ocean Insights! Explore the latest, uncharted realms of ocean science and conservation that you won't find anywhere else. Andrew takes you on an inspiring journey to uncover the hidden gems of oceanic discovery and initiatives. Tune in to discover how you can transform your life for a better ocean, one episode at a time. The How To Protect The Ocean is your resource to keep you informed on the latest ocean news; teach you how to speak up for the ocean; and, how you can take action to live for a better ocean. There is so much information on the ocean and the issues that are affecting it that it can be difficult to find optimism in the future of the ocean. Climate change, overfishing, plastic pollution, water pollution, and coastal development have altered the ocean in ways that have negatively changed the way we use it. The repercussions of climate change, including the ominous specter of rising sea levels, the relentless march of warming ocean temperatures, and the ominous shadow of ocean acidification, have not only altered the very fabric of our coastlines but have also conjured fiercer storms and summoned floods with growing frequency. The fossil fuel industry may whisper in your ear that the situation is insurmountable, an inescapable fate. However, this podcast is here to unveil a different narrative, one that empowers you to take action. It illuminates the path to change by casting your vote for leaders committed to implementing climate-rescuing policies and by offering invaluable insights into how each of us can shrink our individual carbon footprint. The grim reality of overfishing casts a long shadow, fueled by governmental shortcomings in the stewardship of both commercial and recreational fisheries. Within the delicate balance of our oceans, every fish population possesses a threshold - a point at which the relentless harvest of fishermen begins to erode their numbers. The management of these aquatic resources is a formidable task, as the elusive currents of the sea often defy easy tracking. Furthermore, the menace of illegal, unregulated, and unreported (IUU) fishing looms large in many nations, adding to the crisis. Yet, a glimmer of hope shines through the depths. A beacon for responsible consumption emerges in the form of seafood programs, guiding conscientious individuals toward choices that safeguard our oceans. By heeding these programs, you not only savor the delights of sustainable seafood but also become an informed guardian of marine ecosystems. The relentless scourge of plastic pollution has unleashed an epidemic of death upon the denizens of our oceans. It's a ruthless killer, claiming the lives of hundreds of thousands of marine mammals, majestic sharks, grandiose fish, gentle sea turtles, and the graceful sea birds that soar above. The malevolence of this crisis knows no bounds, with microplastics infiltrating even the remotest depths of the ocean and etching their presence along every coastline. To mount a defense against this ecological cataclysm, the clarion call for action echoes on the international and national stages. It beckons governments far and wide to adopt resolute policies, wielding the power to outlaw the menace of single-use plastics and demanding the meticulous detoxification of our supply chains. In this grand battle to safeguard our seas, the fight against plastic pollution knows no borders. The ominous specter of water pollution looms large, a consequence of our thoughtless disposal into the arteries of our planet – our streams, rivers, lakes, and oceans. This callous act reverberates, sending shockwaves through the intricate ecosystems of our coastal havens, where the likes of coral reefs, resilient mangroves, and swaying seagrasses thrive. But alas, this intrusion is not benign; it bears the capacity to corrode and dismantle these vital sanctuaries, the very lifebloo

  1. 1d ago

    The Blob Hit California's Kelp. Protected Kelp Came Back Faster.

    In 2014, just two years after California finished its statewide network of marine protected areas, a marine heatwave known as The Blob settled over the Pacific coast and stayed for two years. Kelp forests collapsed up and down the state, and sea star wasting disease wiped out sea stars on a scale few scientists had seen. For a network built partly to protect kelp habitat, it was the worst possible first test. Andrew Lewin walks through what the state learned when it checked. California's first Decadal Management Review pulled together long-term monitoring across kelp forests, rocky reefs, the intertidal, sandy beaches, and more, producing seven technical reports plus an independent synthesis from the National Center for Ecological Analysis and Synthesis so the state wasn't grading its own work. A UCLA-led study in the Journal of Applied Ecology then used nearly four decades of satellite imagery to show that kelp inside MPAs recovered better after the heatwave than similar unprotected coastline, most clearly in Southern California. The reason comes down to predators. Inside MPAs, California sheephead and spiny lobster were protected from fishing and kept urchins in check, so recovering kelp beds weren't mowed down into urchin barrens. Andrew covers the 2023 recommendations that came out of the review, how the Ocean Protection Council is folding them into California's 30x30 commitment, and why he'd like to see these assessments happen every five years instead of every ten. Thursday, the series turns to who gets heard in what happens next. Takeaways: The 2014 to 2016 marine heatwave (The Blob) and El Niño hit two years after California completed its MPA network, collapsing kelp forests statewide. California's first MPA Decadal Management Review, released by CDFW in January 2023 with the Ocean Protection Council, drew on long-term monitoring across multiple habitats. The review produced seven technical reports and one synthesis report, with the synthesis led by an outside group, NCEAS, for independent perspective. A UCLA-led study in the Journal of Applied Ecology used satellite imagery from 1984 to 2022 and found kelp inside MPAs recovered better after the heatwave than matched unprotected sites, most clearly in Southern California. The likely mechanism is a trophic cascade: protected sheephead and spiny lobster keep urchin populations from exploding into kelp-eating barrens. CDFW's recommendations are organized around MPA governance, the MPA management program, and overall network performance. The network covers 16% of state waters across 124 MPAs, and the Ocean Protection Council is treating it as a foundation for California's 30x30 goal. Regular, checkable assessments show where protection is working and make the case for expanding it. Support Independent Podcasts: https://www.speakupforblue.com/patreon Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube

    The Blob Hit California's Kelp. Protected Kelp Came Back Faster.

  2. 2d ago

    300 People, 50 Tribes, One Meeting: How California Built Its Marine Protected Areas

    In 1999, California passed a law ordering the state to fix its patchwork of ocean parks. For two years, almost nothing happened, and two attempts to get the process moving both failed. It took a 2004 public-private partnership, roughly $35 million in public and philanthropic funding, and a decade of work before the state had a real network of marine protected areas. Partway through that decade, more than 300 people from over 50 tribal nations walked into a public meeting in Fort Bragg to protest how the process was treating their rights. Andrew Lewin walks through what actually happened between the 1999 Marine Life Protection Act and the 124-MPA network Californians know today: the 2004 partnership with the nonprofit funder Resources Legacy Fund that finally got the process moving, the region-by-region design work built on stakeholder groups, a Science Advisory Team, and a Blue Ribbon Task Force, and the Fish and Game Commission votes that made each region official, starting with the Central Coast in 2007. The process also shows where good intentions ran into real conflict. On California's North Coast, tribal sovereignty and traditional gathering rights were not built into the process from the start, and it took a public confrontation before the state addressed it. The North Coast's final proposal, with a formal tribal gathering exception, was not adopted until 2012, and tribal leaders accepted it with conditions rather than a full endorsement. Andrew connects this history to yesterday's conversation with Anupa Asokan about the network's ongoing adaptive management review, and explains why managing an MPA network never really finishes. Takeaways: California's Marine Life Protection Act passed in 1999 but sat mostly unused for its first two years, surviving two failed implementation attempts before a 2004 public-private partnership with the nonprofit funder Resources Legacy Fund got the process moving. The full process to build California's network of marine protected areas took about a decade and roughly $35 million in public and philanthropic funding. Each of the four coastal regions went through the same design steps: a stakeholder group draft, a Science Advisory Team review, a Blue Ribbon Task Force recommendation, and a final vote by the state's Fish and Game Commission. The Central Coast was designated first, in 2007. The process did not build in tribal sovereignty and traditional gathering rights from the start. In July 2010, more than 300 people from over 50 tribal nations took over a Blue Ribbon Task Force meeting in Fort Bragg to protest it. The North Coast region's final proposal, including a formal tribal gathering exception, was adopted in 2012, and tribal leaders accepted it with conditions rather than a full endorsement. California's network now includes roughly 124 marine protected areas and recreational management areas, and it is still being managed through an ongoing adaptive process, the same one covered in yesterday's episode with Anupa Asokan. Managing a network of marine protected areas does not end at designation. It requires monitoring, reassessment, and revision, and that takes sustained funding, time, and public patience. Support Independent Podcasts: https://www.speakupforblue.com/patreon Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube

    300 People, 50 Tribes, One Meeting: How California Built Its Marine Protected Areas

  3. 3d ago

    California Votes on 15 MPA Changes in October. Who Got a Say?

    California has a network of 124 marine protected areas, and in October the state's Fish and Game Commission takes up 15 proposals that could change it. The proposals came out of the network's first 10-year management review, an adaptive management process written into the law so the network could respond to shifting fish populations, a warming climate, and evolving public values. Anupa Asokan, founder of Fish On, explains what that review looked like from inside the room. Anupa is a marine scientist, angler, and surfer who started Fish On to give conservation-minded anglers and spearfishers a voice. She describes a review where the state asked the public to submit petitions instead of assessing the whole network itself, where early agency evaluations left out climate change and equitable access until people pushed for them, and where a public meeting on tribally sponsored petitions drew offensive comments that, she says, no state official condemned. She also credits the Ocean Protection Council for weighing in with its own recommendations, including a climate lens and support for some tribally led proposals. Andrew and Anupa also talk about starting a conservation nonprofit with the help of a fiscal sponsor, why MPAs act as an insurance policy for fisheries management, and what data the state could share first to lower the temperature between groups. The Commission hears MPA petitions October 15 and 16 in Sacramento. Anupa lays out how to send a letter, join the meeting, and find other groups working on the petitions, and every link is in the show notes. Takeaways: California's 124-MPA network faces its first major adaptive management decision, with 15 proposals before the Fish and Game Commission on October 15 and 16. Anupa says the state relied on public petitions instead of assessing the network itself, which put the burden on communities and advocacy groups. The petitions range from a kelp forest package to fishing industry requests to open reserves to tribally sponsored new areas. She says early agency evaluations skipped climate change and equitable access until people pushed, and she credits the Ocean Protection Council for adding both. A safe and respectful public process is part of good management, because people who fear speaking up do not speak. Fish On has an editable letter to the Commission at fishon.us, and Anupa says there may be group rides to Sacramento. Fish On describes its members as fishers fighting for their fish. Fish On's Website: https://www.fishon.us/ Fish On's Resource to Speak Up for California's MPA system: https://www.fishon.us/news-resources/speak-up-for-californias-mpa-future Support Independent Podcasts: https://www.speakupforblue.com/patreon Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube

    California Votes on 15 MPA Changes in October. Who Got a Say?

  4. 6d ago

    Millimeters That Matter: The Sea Level Rise Threshold Coastal Wetlands Can't Survive

    Sea level rise. It's a phrase everyone's supposed to be afraid of, and almost nobody can picture. A couple of millimeters a year sounds too small to matter, until you find out coastal wetlands have an exact, measured speed limit for how fast they can keep up, and the ocean is closing in on it. Marshes and mangroves have kept pace with a rising sea for thousands of years by building their own soil upward, layer by layer, as plants grow, die, and get buried in place. That strategy has a hard limit. Peer-reviewed research puts it at roughly 6.1 millimeters of sea level rise a year, the point past which soil simply can't build fast enough. NASA's own sea level data shows the global rate has already gone from about 2 millimeters a year in the early 1990s to roughly 4.5 millimeters a year today, nearly doubling in three decades and closing that gap fast. There's a second strategy, and it's already working in real places. When a marsh can't out-build the tide, it can move inland instead, if there's room. Maryland's Blackwater National Wildlife Refuge has lost more than 5,000 acres of marsh, nearly half its historic wetland, and faces up to three feet of sea level rise in the Chesapeake by 2100. Its 2013 Blackwater 2100 strategy uses conservation easements to pay landowners to keep migration corridors open, and it's already protected more than 3,000 acres along the Nanticoke River and Coursey Creek. This episode connects back to Monday's interview with Dr. Adam Langley and lands on what coastal communities can actually do about it. Takeaways: Marshes and mangroves survive sea level rise by building soil upward, but that strategy has a hard limit: peer-reviewed research (Saintilan et al., 2020, Science) puts it at roughly 6.1 millimeters of sea level rise a year. NASA's sea level data shows the global rate has already climbed from roughly 2 millimeters a year in the early 1990s to about 4.5 millimeters a year today, nearly doubling in three decades. When building up stops working, marshes and mangroves have a second option: shifting inland, provided there's open land behind them to move into. Maryland's Blackwater National Wildlife Refuge has already lost more than 5,000 acres of marsh, nearly half its historic wetland, and its 2013 "Blackwater 2100" strategy uses conservation easements to keep migration corridors open along the Nanticoke River and Coursey Creek. The plan is working but unfinished: roughly 812 acres are protected along Coursey Creek and 2,300 along the Nanticoke, with about 5,000 acres still unprotected. Support Independent Podcasts: https://www.speakupforblue.com/patreon Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube

    Millimeters That Matter: The Sea Level Rise Threshold Coastal Wetlands Can't Survive

  5. Sep 17

    What the Coast Is Worth: How a Dollar Number Is Already Funding Its Protection

    A boat's wake looks harmless right up until you watch it happen over and over. Every wake a boat throws off chips away at a shoreline that took centuries to build, and it happens on calm days, sunny days, days with no storm anywhere near. A NOAA study at Snow's Cut, North Carolina found that roughly half of all boat wake heights on that stretch of the Atlantic Intracoastal Waterway exceeded the largest wind driven waves measured there, and boats moving at the slow, considerate seeming "plowing" speed threw the tallest wakes of all. Habitat pushes back, and now that push has a number attached to it. A study by Doughty and colleagues found mangroves and marsh can reduce wave height by up to 90 percent, and marsh grass paired with an oyster reef cuts wave energy from boat wakes specifically by 67 percent compared to bare mud. Once a benefit like that is measurable, it becomes fundable: global blue carbon storage in mangroves, marsh, and seagrass is valued at nearly $191 billion a year, and a single restored 100 acre wetland saves local water systems about $17,000 a year, the same figure from earlier this week's Nature's Kidneys episode. Mexico's Riviera Maya coastline puts that funding model into practice. Its coral reef shields around $10 billion in annual tourism revenue, but that value sat informal for years, until a 2018 partnership between The Nature Conservancy, the Quintana Roo state government, local hotels, and the insurer Swiss Re turned it into a parametric insurance policy on the reef itself. When Hurricane Delta hit in 2020, the policy paid out $850,000 within days, funding volunteer brigades that stabilized over 2,150 coral colonies and reattached more than 13,500 coral fragments within three months. This episode closes out this week's coastal habitats series and lands on the one call to your local marina or town council that can actually move the needle. Takeaways: Boat wake erosion is mechanical, not climate driven: NOAA's Snow's Cut study found roughly half of boat wake heights exceed the largest wind driven waves, and slow "plowing" speed produces the tallest wakes of all. Healthy habitat is a measured defense: mangroves and marsh can reduce wave height by up to 90 percent, and marsh paired with an oyster reef cuts boat wake wave energy by 67 percent (Doughty et al., PeerJ). Once a coastal benefit is measurable, it becomes fundable: global blue carbon storage is valued at nearly $191 billion a year, and a single restored 100 acre wetland saves about $17,000 a year in water treatment costs. Mexico's Riviera Maya reef shields around $10 billion in annual tourism revenue, and a 2018 insurance partnership turned that value into a parametric policy that pays out automatically after a storm, no lengthy damage assessment required. When Hurricane Delta hit in 2020, that policy paid out $850,000 within days, funding the stabilization of over 2,150 coral colonies and the reattachment of more than 13,500 coral fragments within three months. The model is now expanding to Belize, Guatemala, and Honduras, with mangroves named as the next expansion. Support Independent Podcasts: https://www.speakupforblue.com/patreon Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube

    What the Coast Is Worth: How a Dollar Number Is Already Funding Its Protection

  6. Sep 15

    Red Tide, Decoded: Why It Isn't Random, and How to Track It

    No smell. No warning. Just a beach full of people who start coughing at the same time, grab their towels, and leave. That's red tide, and it feels completely random until you know what's actually happening in the water. Karenia brevis, the algae behind it, produces a toxin called brevetoxin that rides the wind and waves into the air along the shoreline, which is why people can start coughing with no visible sign anything's wrong. The 2017 to 2019 Southwest and Southeast Florida bloom cost the region an estimated $2.7 billion, mostly in tourism losses, and it wasn't a freak event. Follow the water back far enough and it traces to nitrogen and phosphorus flowing out of the Kissimmee River basin, through Lake Okeechobee, and down the Caloosahatchee River into the Gulf, fueling the same algae that's always been there into a much bigger, longer bloom. Here's the turn: this is trackable. Mote Marine Laboratory's Beach Conditions Reporting System lets anyone on the Gulf Coast check named beaches for red tide conditions before they ever leave the house, the same way you'd check a weather forecast. This episode also connects back to the nutrient-pollution mechanism from the "nature's kidneys" episode with Adam Langley, and lands on one thing you can actually do this season. Takeaways: Red tide is caused by Karenia brevis, an algae that produces brevetoxin, a toxin that becomes airborne in sea spray and can cause coughing and respiratory irritation, worse for people with asthma but capable of affecting anyone near the water. The 2017–2019 Southwest and Southeast Florida red tide bloom cost the region an estimated $2.7 billion, mostly in tourism-dependent business losses. Red tide blooms are naturally occurring, but excess nitrogen and phosphorus flowing from the Kissimmee Basin through Lake Okeechobee and down the Caloosahatchee River make them bigger, longer, and more frequent. A legally mandated program has cut phosphorus leaving Everglades-area farmland by roughly 55 percent long-term, against a 25 percent legal minimum, but the broader system still isn't meeting the water quality standard the Gulf and estuaries need. Mote Marine Laboratory's free Beach Conditions Reporting System lets Gulf Coast beachgoers check red tide conditions beach by beach before they go. Gulf Of Mexico Red Tide Tracker: https://coastalscience.noaa.gov/science-areas/habs/hab-forecasts/gulf-coast/ Support Independent Podcasts: https://www.speakupforblue.com/patreon Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube

    Red Tide, Decoded: Why It Isn't Random, and How to Track It

  7. Sep 15

    Nature's Kidneys: How Coastal Wetlands Stop Ocean Pollution

    Green water. A smell that won't go away. Sometimes, dead fish washing up on shore. That's what too much nitrogen does to a coastline, and it's easy to hear stories like this and feel like the ocean is just losing. This episode is the opposite of that. Here's what most people don't know: a healthy stretch of marsh or mangrove can pull nitrogen straight out of the water before it ever becomes a problem. A single restored 100-acre wetland cut nearby ammonia by 62 percent and total nitrogen by 37 percent, and saved local water systems about $17,000 a year, all within three years. Then there's Tampa Bay: a bay written off as dead in the 1970s that came back so completely it now underpins roughly 1 in 5 jobs in the region, because people regulated pollution and rebuilt the habitat doing the filtering. This episode walks through the real mechanism (how wetland soil locks nitrogen away for centuries), the Tampa Bay turnaround in full, and the Mississippi River's springtime dead zone, then lands on one thing you can actually do this season. Takeaways: Excess nitrogen, not nitrogen itself, is what causes algal blooms, red tide, and dead zones along the coast. Healthy coastal wetlands (marshes, mangroves, seagrass) pull nitrogen out of the water before it reaches a bay, and lock it away in oxygen-starved mud for centuries. A single restored 100-acre wetland cut nearby ammonia by 62% and total nitrogen by 37% within three years, saving local water systems about $17,000 a year (Skidmore and Karwowski, Journal of AERE). Tampa Bay went from a 1970s pollution poster child to a bay where seagrass nearly doubled (21,600 to over 40,000 acres) after regulation and habitat restoration, and now supports roughly 1 in 5 regional jobs. Cutting back on synthetic lawn fertilizer, or switching to a slow-release or organic option, reduces the same runoff that overwhelms a wetland's filtering capacity. Support Independent Podcasts: https://www.speakupforblue.com/patreon Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube

    Nature's Kidneys: How Coastal Wetlands Stop Ocean Pollution

  8. Sep 14

    Blue Nitrogen: The Nutrient Story Coastal Wetlands Have Been Hiding

    Every time this podcast talks about coastal wetlands, the conversation goes straight to carbon. Marshes, mangroves, and seagrasses pull carbon dioxide out of the atmosphere and lock it in soil for centuries, and that story has earned coastal ecosystems a real seat at the climate table. Dr. Adam Langley, a global change ecologist and professor of biology at Villanova University and a research associate at the Smithsonian Environmental Research Center, thinks there's a second story hiding in that same soil that could matter just as much, or more: nitrogen. Langley and 37 co-authors just published the first global estimate of how much nitrogen the world's marshes and mangroves actually bury, and the number is staggering. Pulling from over 8,000 soil measurements across 255 tidal wetland sites worldwide, Langley's team calculated that coastal wetlands sequester roughly 3.2 teragrams of nitrogen every year, a figure Langley makes tangible by comparing it, loosely, to the mass of 700,000 African elephants or to the fertilizer applied to every cornfield in the United States. That's equal to somewhere between 13 and 15 percent of all the nitrogen buried in the world's oceans, a share nobody had managed to calculate on a global scale before this study. Nitrogen doesn't get the same climate spotlight as carbon, but its damage is intensely local: too much of it running off farmland and into estuaries fuels the algal blooms, oxygen dead zones, and red tides that can sicken and kill fish, manatees, and people. Coastal wetlands act, in Langley's words, like nature's kidneys, filtering that nitrogen out of the water and locking it away in oxygen-starved soil where it stays inert, as long as the wetland itself survives. And that's the catch. These wetlands have kept pace with sea level rise for 5,000 to 10,000 years by building soil vertically, but Langley's research suggests they can only keep up with about 8 millimeters of sea level rise a year, a threshold the global rate, now roughly double what it was 75 years ago, is edging closer to. Andrew and Langley dig into what happens on the other side of that threshold: wetland loss, boat-wake erosion along Florida's Intracoastal Waterway, and mangroves creeping poleward into places like Georgia for the first time on record, possibly helping some marshes hold their ground in the process. They also talk dollars: blue carbon's global value has been estimated at $191 billion, and Langley's team calculates blue nitrogen could be worth even more, a case he hopes gets policymakers to start managing nutrients with the same urgency as carbon. Takeaways: Coastal wetlands (marshes and mangroves) bury roughly 3.2 teragrams of nitrogen every year, drawn from a global database of over 8,000 soil measurements across 255 sites, the first estimate of its kind. That nitrogen burial equals 13 to 15 percent of the world's marine nitrogen burial. Human activity has more than doubled natural nitrogen inputs to ecosystems, arguably a bigger disruption to the nitrogen cycle than to the carbon cycle, even though nitrogen's damage shows up locally rather than globally. Blue carbon's global value has been estimated at $191 billion a year; blue nitrogen's could be even higher, an estimated $70 to $339 billion a year. Wetlands can generally keep pace with roughly 8 millimeters of sea level rise per year by building soil, but the global rate has already roughly doubled since the mid-20th century. Mangroves are expanding poleward, including a newly documented population in Georgia, which may help some marshes build soil and resist erosion better, though Adam expects overall coastal wetland area to keep shrinking as seas rise faster.

    Blue Nitrogen: The Nutrient Story Coastal Wetlands Have Been Hiding
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Ratings & Reviews

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out of 5
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About

Dive into the Depths: Join Andrew Lewin on 'How to Protect the Ocean' – Your Gateway to Exclusive Ocean Insights! Explore the latest, uncharted realms of ocean science and conservation that you won't find anywhere else. Andrew takes you on an inspiring journey to uncover the hidden gems of oceanic discovery and initiatives. Tune in to discover how you can transform your life for a better ocean, one episode at a time. The How To Protect The Ocean is your resource to keep you informed on the latest ocean news; teach you how to speak up for the ocean; and, how you can take action to live for a better ocean. There is so much information on the ocean and the issues that are affecting it that it can be difficult to find optimism in the future of the ocean. Climate change, overfishing, plastic pollution, water pollution, and coastal development have altered the ocean in ways that have negatively changed the way we use it. The repercussions of climate change, including the ominous specter of rising sea levels, the relentless march of warming ocean temperatures, and the ominous shadow of ocean acidification, have not only altered the very fabric of our coastlines but have also conjured fiercer storms and summoned floods with growing frequency. The fossil fuel industry may whisper in your ear that the situation is insurmountable, an inescapable fate. However, this podcast is here to unveil a different narrative, one that empowers you to take action. It illuminates the path to change by casting your vote for leaders committed to implementing climate-rescuing policies and by offering invaluable insights into how each of us can shrink our individual carbon footprint. The grim reality of overfishing casts a long shadow, fueled by governmental shortcomings in the stewardship of both commercial and recreational fisheries. Within the delicate balance of our oceans, every fish population possesses a threshold - a point at which the relentless harvest of fishermen begins to erode their numbers. The management of these aquatic resources is a formidable task, as the elusive currents of the sea often defy easy tracking. Furthermore, the menace of illegal, unregulated, and unreported (IUU) fishing looms large in many nations, adding to the crisis. Yet, a glimmer of hope shines through the depths. A beacon for responsible consumption emerges in the form of seafood programs, guiding conscientious individuals toward choices that safeguard our oceans. By heeding these programs, you not only savor the delights of sustainable seafood but also become an informed guardian of marine ecosystems. The relentless scourge of plastic pollution has unleashed an epidemic of death upon the denizens of our oceans. It's a ruthless killer, claiming the lives of hundreds of thousands of marine mammals, majestic sharks, grandiose fish, gentle sea turtles, and the graceful sea birds that soar above. The malevolence of this crisis knows no bounds, with microplastics infiltrating even the remotest depths of the ocean and etching their presence along every coastline. To mount a defense against this ecological cataclysm, the clarion call for action echoes on the international and national stages. It beckons governments far and wide to adopt resolute policies, wielding the power to outlaw the menace of single-use plastics and demanding the meticulous detoxification of our supply chains. In this grand battle to safeguard our seas, the fight against plastic pollution knows no borders. The ominous specter of water pollution looms large, a consequence of our thoughtless disposal into the arteries of our planet – our streams, rivers, lakes, and oceans. This callous act reverberates, sending shockwaves through the intricate ecosystems of our coastal havens, where the likes of coral reefs, resilient mangroves, and swaying seagrasses thrive. But alas, this intrusion is not benign; it bears the capacity to corrode and dismantle these vital sanctuaries, the very lifebloo

Information

  • Creator
    Andrew Lewin
  • Years Active
    2023 - 2026
  • Episodes
    2K
  • Rating
    Clean
  • Copyright
    © Copyright 2026
  • Show Website
    How To Protect The Ocean

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