Sea Change

The amazing science behind understanding mysterious but critical ocean currents. And specifically, understanding the current in our backyard, the Gulf’s Loop Current.

We talk with scientists leading a huge multi-country research collaboration that is going to great lengths and depths to understand the especially unknown Loop Current. We talk about how currents connect us, how they are basically a thermostat for the globe, a...

This is part 2 of a 2-part series exploring the future of farming seafood in the Gulf. We know this: demand for seafood is soaring. We won't be able to sustainably meet that demand from wild-caught fisheries. And there’s a growing global movement to farm more and more of our seafood. 

The Gulf is one of the LAST places in the world where there is still a major wild oyster harvest. Lately, though, that harvest…is in trouble....

This is part 1 of a 2-part series exploring the future of farming seafood in the Gulf. Americans eat a lot of farmed seafood — but the vast majority of it comes from overseas. We just don’t farm fish on a big scale in U.S. waters. Now that might start to change. There are proposals to build massive fish farms in U.S. federal waters. And guess which coast is likely to be the first home for these new farms? You guessed it,  ...

The story we are bringing you today is about sea turtles. In fact, it’s about the smallest and most endangered of sea turtles, called the Kemp’s Ridley. It’s a surprising and optimistic tale about a turtle’s return to Louisiana. 

We reported this episode back in 2023, but we wanted to revisit it because who doesn’t need more sea turtles in their life right now? And also because there has been some big news for sea turtles r...

What does it take to stay rooted on the Gulf Coast, even as the land and weather change around us? We meet individuals, from a poet to a minister to a computer programmer, each finding their own creative ways to adapt and fight for the future of their communities. From amphibious homes to inland retreats to processing our changing environment through poetry, we hear how people's ingenuity is helping chart a new path forwar...

There was a time back in the 1980s when overfishing had decimated popular fish like red snapper and grouper in the Gulf. But then, there was a dramatic turning point, when both fish and fishermen in the Gulf were kind of saved. Today, we hear the remarkable success story of how unlikely partners joined forces to save an industry and an ecosystem.

In this episode, Environmental Defense Fund's Executive Director, Amanda Lelan...

Today, we’re bringing you a wild story. It’s about a covert ocean adventure from back in the Cold War days that inadvertently set off a brand new industry. And it’s an industry that’s been in the news a lot lately: deep-sea mining. 

Earlier this year, President Trump signed an executive order to try to fast-track deep-sea mining, while many countries are calling for more research before any mining can proceed or an outright...

Today, we bring you three stories exploring what it really takes to be ready for the next big storm. But at their core, these stories are about something deeper: the determination to keep living here on the Gulf Coast, and about the choices we’re making that will decide whether that’s possible.

Thanks for listening to Sea Change. This episode was hosted by Carlyle Calhoun, Eva Tesfaye, and Michael McEwen. Eva and Michael re...

For the first time since Hurricane Katrina made landfall 20 years ago, you can take a train ride across the Gulf Coast, from Mobile to New Orleans. And all these years later, the cities along that route are still living with the storm's aftermath. In this episode, we hop aboard the train and make four Gulf Coast stops along the way to share that story. About what happened during Katrina. How some places built back better, ...

Two decades after Hurricane Katrina and its devastating aftermath reshaped New Orleans and the Gulf Coast, we gathered to remember all that was lost, reflect on the lessons learned, and pay tribute to all the good that has been done in the two decades since. And, we look to the future: where do we go from here, and how can this region not just survive but thrive?

Renowned jazz musician Dr. Michael White performs original mu...

This August marks twenty years since Hurricane Katrina. Today, we are bringing you a story we first aired in 2023. It’s about a word heard everywhere after Hurricane Katrina. And people across the Gulf Coast have strong and complicated feelings about it. 

The word is resilient. 

A special thanks to Rob Verchick, author of The Octopus in the Parking Garage: A Call for Climate Resilience. And, to everyone who spent time with u...

El Bosque, Mexico, a tiny fishing village on Mexico’s Gulf Coast, is quickly vanishing into the sea.  In this episode, we journey to El Bosque to meet the town’s unlikely hero—one woman determined to fight for a future for her community as her neighbors flee the encroaching waves.

This episode was reported by Alvaro Céspedes. It was hosted by Carlyle Calhoun and Alvaro. Editing by Johanna Zorn, Carlyle Calhoun, with additio...

Climate change is bad news for almost everyone. Emphasis on almost, because believe it or not, one marine species is absolutely thriving as the Gulf warms: Bull sharks! 

Get ready for some shark science as we learn why bull sharks are increasing in numbers across the Gulf and getting hungrier. 

This episode was hosted by Carlyle Calhoun and Katelyn Harrop. Katelyn conducted the interview. Our theme music is by John Batiste, ...

Climate change is altering the land we live on, and Indigenous communities are on the frontline. In this episode, we bring you to Alaska, where rapid permafrost thaw is threatening the Native village of Nunapitchuk. Then, we head to Louisiana, where the Pointe-Au-Chien Indian Tribe is watching their land disappear underwater due to sea level rise. These threats are forcing these tribes to make the difficult decision: to st...

If you’ve ever dreamed of what it would be like to be a marine biologist or marine ecologist, days spent scuba diving and swimming alongside sea turtles, all to better understand and protect our ocean, well then, you’re about to meet one of your heroes. 

Today, we are bringing you an episode of the podcast Going Wild with Dr. Rae Wynn-Grant. It’s an award-winning show from our friends at Nature on PBS featuring some of the ...

The chemical industry is big business in Louisiana. Companies here manufacture plastics, fuels, pesticides, and cleaning products. But one part of the chemical industry that’s often overlooked is the fertilizer business. 

Today, you’re going to hear the story of modern fertilizer, and how this powerful concoction of chemicals has radically reshaped how we farm and what we eat. In this episode, we follow the journey of ferti...

Last week, we hosted a Sea Change live event at the New Orleans Jazz Museum. We wanted to talk about the science behind the massive land loss crisis we are experiencing, what it means to live in a vanishing landscape, and importantly, what we can do about it. But this is New Orleans, so we also wanted to celebrate! Celebrate the culture and joy of living in this special place. 

And while we can’t share food through the airw...

We are all affected by ocean conditions, and we're talking about huge things like global food security and human health, to fisheries we depend on, to the transport of a whopping 90% of the world's goods. So it's vitally important to understand ocean conditions. 

What can the fascinating field of ocean forecasting tell us about the future for us on land and for life under the sea?

Want to learn even more? Click here to read ...

Like much of coastal Louisiana, Isle de Jean Charles is rapidly disappearing into the Gulf because of coastal erosion and sea level rise. Scientists predict the island will be completely underwater by 2050.

Almost a decade ago, the federal government awarded the state of Louisiana $48 million dollar to resettle members of the Jean Charles Choctaw Nation from Isle de Jean Charles. This was the first project of its kind and i...