How To Protect The Ocean

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.

Recent Episodes

2024
Sept. 15, 2026

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 r
2023
Sept. 15, 2026

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 p
2023
Sept. 14, 2026

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
2022
Sept. 11, 2026

Who Pays for Plastic? Inside the Law Quietly Shifting the Bill to Producers

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 collect
2021
Sept. 10, 2026

Inside Ocean Conservancy's Fight to Make Washing Machine Filters the Law

Ocean Conservancy's "Not Safe for Wash" campaign is built around a simple premise: the fix for washing machine microfiber pollution already exists, so the fight isn't about inventing new technology, it's about forcing a nearly two-decade-old idea into law. Its own May 2026 poll of 1,010 Americans found concern about microplastics up 32% since 2023, nearly 9 in 10 people concerned, and 81% in favor of requiring filters on new washing machines. The public isn't the obstacle. The real opponent is A
2020
Sept. 9, 2026

Your Washing Machine Sheds Up to 18 Million Microfibers a Load

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 grow
2019
Sept. 8, 2026

Can Bacteria Actually Eat Plastic?

Bacteria that eat plastic sounds like the fix everyone's been waiting for, and Andrew gets sent videos about it constantly. So on this solo episode, following Monday's interview with Dr. Anja Brandon of Ocean Conservancy, he goes looking for the real state of the science. The short version: it's promising, it's roughly a decade of real research deep, and it is nowhere close to running at the scale the ocean plastic crisis actually needs. The bacterium that started this whole field, Ideonella sa
1991
Sept. 7, 2026

The 90 Percent Fix Hiding in Your Laundry Room

Every time you run a load of laundry, your washing machine sheds plastic. Not metaphorically: synthetic clothing made from polyester, nylon, and rayon releases microfibers with every wash, and depending on the study, a single load can shed anywhere from a few hundred thousand to millions of them. Most of us have never thought about it, because unlike a plastic bag on the beach, you can't see it happening. In this episode, Andrew talks with Dr. Anja Brandon, Director of Plastics Policy at Ocean C
2017
Sept. 4, 2026

A New PBS Documentary Wants You to Care About Coral. Meet the Man Behind It.

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
2016
Sept. 3, 2026

Show Me the Receipts: Why I.CARE Monitors Every Coral It Plants

Most coral restoration groups check on a sample of what they've planted, often around 20 to 30 percent, and report that sample as if it represents everything in the water. I.CARE checks on all of it. Every single coral outplant gets monitored at one week, one month, 90 days, then one, two, and three years, with no substitute and nothing left unaccounted for. That rule was built in by co-founders Mike Goldberg and Dr. Kylie Smith before I.CARE ever planted its first coral, and Mike frames it as a

Recent Blog Posts

Sept. 15, 2026

Nature's Kidneys: How Coastal Wetlands Filter Nitrogen Pollution for Free

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 if you've been following ocean news lately, it can feel like one more thing to be anxious about. It isn't. This…
Sept. 14, 2026

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, a service now valued at roughly $191 bill…
Sept. 11, 2026

Who Pays for Plastic? Inside the Law Quietly Shifting the Bill to Producers

Every grocery run comes with a bill nobody sees on the receipt. The bottle, the clamshell, the six-pack rings, all of it has to go somewhere once you're done with it, and for decades the honest answer to who covers that cost was taxpayers, quietly, …

Reviews

Brilliant podcast

"This is my favourite podcast I have found so far!! The host is great at disseminating information but it’s also not just scientific dribble - it’s fun to listen to and definitely makes you think. I a…"

kateallcock | March 17, 2021

For the Oceans

"Been following this show for quite awhile and LOVE it. Informative, never boring and always gets to the heart of the matter without the sensationalism so many other draining podcasts have. Though he …"

SelkieLady | Jan. 3, 2023

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