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PODCAST

How To Protect The Ocean

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

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All Episodes

09:39

The Whale Heart That Beats Twice a Minute

How To Protect The Ocean ·

2026/10/07

Fill your hands with cold water, hold your breath, and press your face in. Your heart slows within seconds. That reflex lives in every whale in the ocean too, and in a blue whale it is pushed so far that the largest heart on Earth can drop to two beats a minute on a deep dive. In this episode, Andrew walks through the first heart rate recording from a wild blue whale, led by Jeremy Goldbogen's team at Stanford, and a study by Terrie Williams of UC Santa Cruz that tracked narwhals fleeing after

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10:57

The Biggest Mouthful: How Blue Whales Eat and Why...

How To Protect The Ocean ·

2026/10/06

A blue whale can swallow a volume of water bigger than its own body in a single gulp. That move, called lunge feeding, is one of the most extreme feats in the animal kingdom, and it only pays off when krill is packed into thick, dense swarms. In a thin patch, a blue whale gets back about six times the energy it spent. In a dense swarm, it gets back more than 200 times. In this first episode of the Age of Giants series, Andrew breaks down how rorqual whales feed, then follows the krill. In 2025, the

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19:39

The Pollution That Breeds: How the Great Lakes...

How To Protect The Ocean ·

2026/10/02

In 1988, someone found a striped mussel the size of a fingernail in Lake St. Clair. Within a few years, zebra mussels coated pipes, boats, and the bottom of the Great Lakes, and they became the poster child for "it's too late." Andrew closes Marine Pollution week with the pollutant that breaks every rule: a living one that reproduces instead of diluting. He follows two invaders. Zebra mussels rode in on ship ballast water, clogged power plant intakes, and stripped plankton from the base of the food

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18:46

What Happens to Fish When Our Pills Reach the Water?

How To Protect The Ocean ·

2026/09/30

In 2001, government scientists started adding a tiny amount of the synthetic estrogen found in birth control pills to a remote lake in northwestern Ontario, at levels already measured in city wastewater. Within seven weeks, male fish were making egg-yolk protein. After two summers, some had eggs growing in their testes, and the fathead minnow population collapsed to about 1% of normal. Andrew explains how the same chemistry leaves our bodies every day, passes through treatment plants built for

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09:42

300 People, 50 Tribes, One Meeting: How California...

How To Protect The Ocean ·

2026/09/22

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

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59:23

California Votes on 15 MPA Changes in October. Who...

How To Protect The Ocean ·

2026/09/21

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

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10:45

Millimeters That Matter: The Sea Level Rise Threshold...

How To Protect The Ocean ·

2026/09/17

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

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13:37

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

How To Protect The Ocean ·

2026/09/15

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

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01:02:37

Blue Nitrogen: The Nutrient Story Coastal Wetlands...

How To Protect The Ocean ·

2026/09/14

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

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17:06

Who Pays for Plastic? Inside the Law Quietly Shifting...

How To Protect The Ocean ·

2026/09/11

For decades, the honest answer to "who pays to deal with plastic packaging once it leaves the shelf" was taxpayers, quietly, through municipal budgets that funded garbage trucks and recycling plants running at a loss, whether or not the packaging actually got recycled. That's the system extended producer responsibility (EPR) is built to replace: a legal requirement that the companies making and selling packaging fund what happens to it after a customer buys the product, not the city that collects it

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13:09

Your Washing Machine Sheds Up to 18 Million...

How To Protect The Ocean ·

2026/09/09

Every wash cycle sheds plastic. Last Monday, Andrew talked with Dr. Anja Brandon of Ocean Conservancy about microfiber pollution, and one question from that conversation stuck with him: has anyone actually fixed this yet? In this solo follow-up, Andrew traces a microfiber's actual path, from the moment agitation, heat, and detergent work it loose from a shirt, through the drain, into a wastewater treatment plant, and out the other side into biosolids, farmland, rivers, and the ocean, with a growing

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50:45

A New PBS Documentary Wants You to Care About Coral....

How To Protect The Ocean ·

2026/09/04

A new documentary called Descent – Into the Blue starts airing on public television stations nationwide on September 1, 2026. It's narrated by Peter Coyote, directed by Rory Fielding, and one of its central voices is Mike Goldberg, co-founder of the Florida Keys coral restoration nonprofit I.CARE and owner of Key Dives in Islamorada. Andrew sits down with Mike for the full, unedited version of the conversation this week's four solo episodes have been building toward: 30-plus years running a dive

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15:48

The Nursery Hack That Pays for Itself

How To Protect The Ocean ·

2026/09/02

Coral nurseries need constant maintenance, and that maintenance is expensive and relentless. When Andrew talked to Mike Goldberg, co-founder of I.CARE, his answer wasn't to hire more staff. It was to let paying customers do it for the fun of it. Mike owns a dive shop in the Florida Keys, so the paying customers are scuba divers, and over the years he's built a funding model so small that nobody has ever really complained about it. None of that makes sense until you understand what coral actually is

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01:04:53

Everyone in the Tent: How Ocean Treaties Actually Get...

How To Protect The Ocean ·

2026/08/28

Holly Koehler has spent almost thirty years in rooms most people never think about: windowless UN offices in New York, the FAO in Rome, and what she calls "oftentimes very boring hotel ballrooms around the world," where countries hash out how the ocean actually gets managed. She's the Vice President of Policy and Outreach at the International Seafood Sustainability Foundation (ISSF), and before that she spent thirteen years at the U.S. State Department's Office of Marine Conservation, chairing

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13:59

The Secret Rooms Where Your Seafood's Fate Gets Decided

How To Protect The Ocean ·

2026/08/27

Between a fishing vessel out on the water and a can of tuna in your grocery cart, there is a whole hidden system deciding whether you should trust what is on the label. In this episode of the How to Protect the Ocean Podcast, host Andrew Lewin breaks down how that system actually works, and why the blue check mark on your seafood means something real. Andrew starts with the RFMO, a regional fisheries management organization: a treaty-based body where countries with a stake in a fishery legally bind

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17:04

The Ship Has Reached the Shore: The High Seas Treaty...

How To Protect The Ocean ·

2026/08/26

There's a video online of a room full of exhausted diplomats breaking into applause after nearly 20 years of work. One woman brings down the gavel and says, "the ship has reached the shore." That moment, in March 2023, closed out a negotiation that had already failed once in public. It became binding international law this year, and the fight over what it actually protects is happening right now. In this episode, Andrew traces the full history of the High Seas Treaty, formally the BBNJ Agreement

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13:52

Corals Nearly as Old as the Pyramids, and the Fight...

How To Protect The Ocean ·

2026/08/25

Somewhere on the ocean floor right now, a coral colony has been growing since before the Great Pyramid of Giza was finished. One deep-water black coral off the coast of Hawaii has been dated at 4,270 years old, making it one of the oldest living skeleton-building organisms known to science. A single pass of a bottom trawl net can wipe out that kind of habitat in seconds, and it's a fight that's still being decided this very year at the United Nations. In this episode, Andrew breaks down why bottom

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15:54

A Summer Internship, Thirty Years, and One Career for...

How To Protect The Ocean ·

2026/08/24

A grad student faces a simple choice: write another term paper, or take a summer internship. She takes the internship, gets assigned to sea turtles, and thirty years later she is in the room for some of the most consequential ocean policy agreements ever negotiated. This episode traces that career from the beginning, and it starts with a realization that shapes everything that follows: sea turtles do not read maps. They cross every border humans have drawn, which means protecting them requires

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17:09

5,000 New Species Prove the "Ocean Desert" Deep Sea...

How To Protect The Ocean ·

2026/08/20

In September 2021, Time magazine profiled Gerard Barron, CEO of The Metals Company (TMC), and his push to mine the Clarion Clipperton Zone (CCZ), a stretch of international seabed between Hawaii and Mexico. In that profile, Barron called the CCZ "the most desert-like place on the planet," arguing that mining the deep sea does less environmental harm than mining a rainforest because there's supposedly so little life down there to disturb. That single line has been repeated for years as justification

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22:24

The Gerard Barron Pattern: Why a CEO Who Watched One...

How To Protect The Ocean ·

2026/08/19

Why would someone who watched one deep-sea mining company collapse go back and try it again? That's the question at the center of this episode, and it's not hypothetical. It happened, with the same industry, some of the same licenses, and the same person at the center of it: Gerard Barron, now CEO of The Metals Company (TMC), one of the most prominent and best-funded companies pushing to start commercial deep-sea mining today. This isn't framed as an accusation against Barron specifically. It's a

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