A study published in May in the journal Nature Sustainability reports that the shoreline could eventually sit some 30 miles north of New Orleans. The finding does not come from a model. The authors dated a buried ridge north of the city and identified it as a shoreline from the last interglacial period, the last time global temperatures were about where they are now.
Three quarters of Louisiana's remaining coastal wetlands are projected to be gone or going by around 2070. Two river diversion projects meant to rebuild that land broke ground and were canceled.
This week we ask what preparing actually looks like, and who gets to do it. Our guests describe a slow, generational shift inland rather than a sudden evacuation, and they push back on the idea that the people who stay are refusing to face facts. Insurance pricing, not scientific consensus, is how most people first learn what their home is worth in a warming Gulf. And in one researcher's surveys, most residents who say they would relocate if flooding worsened also say they want to stay in the same parish.
Featuring: Torbjörn Törnqvist, professor of geology, Department of Earth and Environmental Sciences, Tulane University; Brianna Castro, assistant professor of urban sustainability, Yale University; Abbey Hotard, assistant professor, School of Marine and Environmental Sciences, University of South Alabama; Robert Eugene Turner, professor emeritus, Department of Oceanography and Coastal Sciences, Louisiana State University
Archival audio: Jesse Keenan, associate professor, Tulane University, via Here and Now, WBUR; Torbjörn Törnqvist via WVUE Fox 8, New Orleans; John Bel Edwards, former governor of Louisiana
Credits:
* Host and producer: Angela Johnson * Produced by: Vanessa Kolb, Dan Pavlish * Executive producer and audio editor: Ace Estwick
Music:
* Mamie Smith and Her Jazz Hounds, "New Orleans" (OKeh, 1922) * jaap.sijben, "Music Second line parade - brass band" (CC BY 4.0) https://freesound.org/s/177930/ * Additional sound from Pixabay
Learn More:
* https://doi.org/10.1038/s41893-026-01820-z * https://environment.yale.edu/news/article/louisianas-shrinking-coast-offers-narrowing-window-managed-retreat
Making Contact is an award-winning, nationally syndicated radio show and podcast featuring narrative storytelling and thought-provoking interviews. We cover the most urgent issues of our time and the people on the ground building a more just world.