Tulane professors Torbjörn (Tor) Törnqvist, a geologist, and Sönke Dangendorf, a coastal engineer and physical oceanographer, join John to talk about sea level rise and coastal restoration, and what could happen to coastal communities if we pass the Paris Agreement global temperature threshold of 1.5-degree Celsius. Sönke has more than 15 years of experience researching mean and extreme sea levels, ocean tides and storm surges and the impact on coastal flooding, and is a member of the NASA Sea-Level Change Team. Tor has been researching the evolution of rivers, deltas, coasts, and shallow oceans in response to climate and sea-level change for more than 20 years.

Richard Seager, a climate scientist and the Palisades Geophysical Institute/Lamont Research Professor at Lamont-Doherty Earth Observatory of Columbia University, joins John to talk about changes in aridity in North America around the 100th Meridian, and how climate change is going to affect the heartland of the U.S. and the Mississippi river basin. Richard’s current work is focused on how global hydroclimate will change in the near-term future as a result of rising greenhouse gases, and how that will affect people and food systems.

Jay Famiglietti, a hydrologist and a Global Futures Professor in the School of Sustainability at Arizona State University, joins John to talk about groundwater management and the state of water in the American west. Jay has extensive experience measuring and tracking groundwater and water security issues, including using satellites to help develop advanced computer models to track how freshwater availability changes around the globe.

Cash Daniels is a 13-year-old from Chattanooga, Tennessee, who has been cleaning up rivers since he was just seven years old and cofounded the kid-run nonprofit, The Clean Up Kids. He and John talk about plastic waste in waterways and what can be done about it, how it affects human and wildlife health, and his upcoming documentary, The Conservation Kid.

Nancy Rabalais, Professor and Shell Endowed Chair in Oceanography and Wetland Studies at Louisiana State University and the lead scientist on the recent 2023 dead zone cruise, talks with John about the current state of the Gulf of Mexico dead zone, why it matters to the Gulf economy, what it might take to reverse it.

Ed Clark, Director of NOAA’s National Water Center and the Deputy Director of the National Weather Service’s Office of Water Prediction, talks with John about how data science plays a role in water forecasting, how new tools and technologies can provide better services to all communities, and how the National Water Center might help prepare the nation for the implications of climate change on human health.

Can New Orleans thrive with water? Jessica Dandridge, Executive Director of The Water Collaborative in New Orleans, talks with John about what water justice means, how to engage communities in creating solutions, and why we should think about thriving versus resilience.

Phosphorus and nitrogen are critical for growing food but can be dangerous when they enter our waterways as runoff. Lisa Schulte Moore, a landscape ecologist, Iowa state university professor, and a 2021 MacArthur Fellow, talks with John about how Iowa agriculture practices impact the Mississippi River and how her work integrating prairie vegetation into crop fields led to real results in reducing soil erosion and nitrogen and phosphorus runoff.

The Mississippi river is basically the aorta of the United States, pumping out globally crucial agriculture and commerce to the world. In this new season of Audacious Water, we're exploring the challenges facing the Mississippi and the hundreds of millions of people who depend on it. Hear from experts about everything from how we can reduce the Gulf Dead Zone to how we can stop New Orleans from sinking.

Thomas LaVeist, public health expert and Dean of the School of Public Health and Tropical Medicine at Tulane University, talks with John about how climate change will impact health, especially for more vulnerable communities, and the role water will play.