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…
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, …
The technology that stops a washing machine from shedding plastic into the ocean already exists. Getting a law that requires it is a different fight entirely, and it's one that's already been lost once. This episode digs into Ocean Conservancy's "No…
Every time synthetic clothing gets washed, it sheds tiny plastic fibers. Depending on the study, a single load can release anywhere from a few hundred thousand to 18 million of them, each one roughly 100 times thinner than a human hair. Last Monday,…
Bacteria that eat plastic sounds like exactly the kind of fix the ocean needs. It shows up in viral videos, it comes up in casual conversation, and after Monday's episode with Dr. Anja Brandon of Ocean Conservancy, who half-joked about a future home…
Every time synthetic clothing is made, worn, or washed, it sheds tiny plastic fibers called microfibers. Nylon, polyester, and rayon are all forms of plastic, and today's clothing is made from more synthetic material than ever before. Depending on t…
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 built, in Fielding's own words, like a five-movement symphony…
Most coral restoration groups check on a sample of what they've planted, often somewhere around 20 to 30 percent, and report that sample as if it represents everything they put in the water. I.CARE, the Islamorada, Florida coral restoration nonprofi…
Coral nurseries need constant maintenance. That maintenance is expensive, and it never really stops. When Mike Goldberg, co-founder of the Florida Keys coral restoration nonprofit I.CARE, ran into that problem, his answer wasn't to hire more staff. …
Mike Goldberg has logged over 10,000 dives and spent decades running a dive shop in the Florida Keys, long enough to remember the reefs at their pristine, wall-to-wall best. He's also watched them decline in real time. His first widespread coral ble…
This year, most of the coral on the planet went through heat stress severe enough to bleach it. According to NOAA and the International Coral Reef Initiative, 84 percent of the world's coral reef area, spanning the Pacific, Atlantic, and Indian Ocea…
Most people picture ocean conservation as scientists on research vessels or advocates holding up protest signs. Holly Koehler spent almost thirty years in a very different setting: windowless UN meeting rooms in New York, offices at the FAO in Rome,…
Somewhere between a fishing vessel out on the water and a can of tuna in your grocery cart, a complex, little-understood system works to verify whether you should trust what's on the label. It runs on audits, vessel registries, and compliance report…
There's a video online of a room full of exhausted diplomats breaking into applause. One woman, Ambassador Rena Lee of Singapore, brings down the gavel and says: "the ship has reached the shore." That was March 4, 2023, at UN headquarters in New Yor…
Somewhere on the ocean floor right now, there's a coral colony that has already outlived most of recorded human history. Off the coast of Hawaii, Lawrence Livermore National Laboratory researchers dated a deep-water black coral, Leiopathes sp., at 4…
A grad student is handed a choice: write another term paper, or take a summer internship. She takes the internship. She gets assigned to sea turtles. Thirty years later, she is in rooms with delegates from more than 150 countries, negotiating the ag…
For decades, the deep sea was treated as an afterthought in conversations about ocean conservation, a dark, distant place assumed to be mostly empty. That assumption is now being tested in real time, as mining companies push to extract polymetallic …
In September 2021, Time magazine profiled Gerard Barron, CEO of The Metals Company (TMC), and his company's plan to mine the Clarion Clipperton Zone, a stretch of international seabed between Hawaii and Mexico that holds one of the world's largest k…
Why would someone who watched a deep-sea mining company collapse go back and try it again? For Gerard Barron, CEO of The Metals Company (TMC), that's not a hypothetical question. It's already happened once, with the same industry, some of the same l…
Seamounts are underwater mountains, most of them volcanic, that rise at least 1,000 meters above the surrounding seafloor without breaking the surface. They disrupt ocean currents through a process called topographic upwelling, in which cold, nutrie…
Most people picture ocean advocates coming up through science or policy school. Matthew Gianni's path started on the deck of a fishing boat. For 10 years, Matthew worked as a commercial fisherman across a remarkable range of US fisheries. He gillne…
Every field has its designated spokespeople. In marine science, it's usually whoever has the most letters after their name. Amy Weldon thinks that's a mistake, and she built an entire podcast to prove it. Amy is the host and executive producer of B…
After 11 years of podcasting and 2,000 episodes of How to Protect the Ocean, Andrew Lewin is doubling down on a platform he first tried and stepped away from twice: YouTube. In this episode, recorded the day after HTPTO's milestone 2,000th episode a…
Two thousand episodes. When Andrew Lewin recorded episode one of How to Protect the Ocean, he had no way of knowing it would eventually lead to TV offers, podcast hosting offers, job offers, and his current dream job. In this milestone episode, he p…