Photo credit: California Sea Grant

   Changing Waters is a podcast produced by NFCC and the American Shorelines Podcast Network about the ocean, the people who depend on it, and the people who are working to keep it healthy.


   Recent episodes include interviews with Former President of Ireland and climate justice advocate Mary Robinson, fisheries legend Ray Hilborn, and NOAA Researcher Laurie Weitkamp. Changing Waters is co-hosted by Executive Director Brad Warren and Board Member Thane Tienson.


Photo credit: Deepwater Wind

Latest Episode

Celebrating the Life and Legacy of Thane Tienson

Our friend, colleague, and Changing Waters host Thane Tienson died suddenly and tragically of a heart attack Jan. 28, 2021On this episode, Peter Ravella and Tyler Buckingham are joined by Brad Warren and Greg Tozian to celebrate Thane’s life and his legacy as a person and devoted advocate for the fisheries, environment, and the indigenous peoples of the Pacific Northwest. Thane lived a remarkable life. He cared deeply about people, especially the little guys, and quietly and steadily devoted his professional skills to help others. He was a renowned environmental lawyer, admired throughout the Pacific Northwest, and is remembered for his unfailing generosity, superb storytelling and indelible courage.

Along with Brad, Thane co-founded the National Fisheries Conservation Center to protect PNW fisheries and together they created and co-hosted the Changing Waters podcast. Tozian, an author and playwright now in Tampa, was one of Thane’s dearest friends in Portland, Oregon. Thane leaves a coastal legacy of advocacy for the voiceless, especially for the environment, fishermen, and Native Americans.

The National Fisheries Conservation Center has set up a fund in Thane’s honor, which can be contributed to here. We’re going to miss Thane tremendously. He was a lovely man. You can read his obit here.

Past Episodes


Photo credit: Lawrence Livermore National Laboratory

Upending Global Hydrogen with Dr. Greg Rau

On this episode of the Changing Waters podcast, host Brad Warren speaks with Dr. Greg Rau of Planetary Hydrogen about using ocean chemistry to capture and store CO2, the toolkit for ocean carbon removal options, and why Greg thinks that the abiotic, natural chemistry of the ocean shows particular promise. Planetary Hydrogen is upending the global hydrogen market with the first scalable, truly carbon-negative form of hydrogen production. Their process converts greenhouse gases directly out of the air into an antacid for oceans damaged by climate change. This Ocean Air Capture (OAC) system is the first to be able to both remove the carbon dioxide that is causing climate change and to restore ocean chemistry.

Photo credit: PCFFA

Glen Spain, Part I: the Fight for the Columbia River

Damming the Columbia River may have electrified the Pacific Northwest, but it also turned the world’s greatest salmon producing river into a series of sun-heated slackwater pools—hot enough to kill salmon at both ends of their epic migration. Glen Spain, a veteran leader of West Coast fishermen’s efforts to protect their  livelihood from environmental harm, updates us on recent progress in the decades-long struggle to force improvements in dam operations and give the fish a better chance.

Glen Spain is the Northwest Regional Director and Salmon Protection Program Director for Pacific Coast Federation of Fishermen’s Associations (PCFFA) and the Institute for Fisheries Resources (IFR) at their joint Eugene, OR office. He has been a vocal advocate for better watershed and riparian protections on both private and public lands, and currently serves on advisory committees to the Board of Forestry in both California and Oregon. He works as an advocate for sustainable aquatic resource use and the protection and recovery of salmon throughout northern California and the Pacific Northwest. He lectures widely on forestry/fishery and marine resource protection issues throughout the Pacific Northwest and elsewhere. He is also the recipient of the 1993 David Simmons Award for Environmental Vision from the Oregon Natural Resources Council, Oregon’s largest and most effective environmental protection organization. Glen received his law degree from San Francisco State University.

Photo credit: Klamath Riverkeeper

Glen Spain, Part II: Freeing the Klamath River

After decades of legal and political wrangling, four dams on the Klamath River are now set for removal, reopening the river for restoration of salmon runs that were nearly destroyed— along with the people who depend on them. The innovative public-private financing that made this possible could be a model for future restoration efforts along the West Coast.  Glen Spain, a leader in restoration effort on behalf of salmon fishermen, recounts the long struggle in this interview with cohost Brad Warren.

Photo credit: NFCC

Deoxygenation and the Oceans in the UN with Dr. Lisa Levin

In this episode of Changing Waters, Global Ocean Health’s Julia Sanders interviews Dr. Lisa Levin. From Scripps Institute of Oceanography, Dr. Levin studies deep sea and coastal deoxygenation, including taking deep sea videos of oxygen minimum zones. She discusses her work, as well as a recent op-ed she co-wrote in The Ecologist, which talks about tackling climate change via the United Nations/Paris Agreement. Julia and Dr. Levin also share their experiences at COP21, where the Paris Agreement was signed.

Photo credit: KyotoKenshu

Starving Orcas & Declining Salmon: How One Grocery Store Developed an Innovative and Responsible Sourcing Policy

Two years ago the world watched in sadness as an orca pushed her dead calf through Puget Sound for 17 days. The event brought attention to the unique “Southern Resident Killer Whale” pods that are believed to be starving as their primary food source of king salmon declines. In response to customer concerns, some grocery stores stopped selling king salmon, but that came with unintended consequences. Hear how a fisheries expert and a progressive-minded grocery store chain in the PNW teamed up to develop a groundbreaking way to safely and sustainably put king salmon back on the menu for humans and orcas.

Photo credit: MagicOlf

Friday Happy Hour: Contemplating the Future of Carbon and the Ocean

On this episode of the American Shoreline Podcast Network’s Friday Happy Hour, Tyler Buckingham talks with Brad Warren about how the fight to mitigate the impacts of the carbon crisis will present the ocean and coastal communities with a new slate of challenges which in turn will require cooperation and buy in from all stakeholders. Brad talks about what we can do about it. Brad is the Executive Director of the National Fisheries Conservation Center and leads its Global Ocean Health program.

Photo credit: University of Washington

The Kelp Crisis and the Miracle of Macroalgae

In the latest episode of Changing Waters, Global Ocean Health’s Deputy Director Julia Sanders interviews kelp guru, Dr. Tom Mumford from the Friday Harbor Laboratories, University of Washington in Seattle. From Northern California to Southern Oregon, kelp is undergoing devastating losses, with 95% of kelp forests turned into urchin barrens. Tom explains what happened and the miraculous benefits kelp provides as an ecosystem engineer and as a source for new scientific discoveries. From kelp-derived plastic you can eat, to wound care, from rediscovering how kelp can help farmers, to a critical contributor to biodiversity and marine food webs, there is much to be gained from kelp. Catch this episode of Changing Waters and open your eyes to a miracle macroalgae and the struggle to keep it thriving in changing ocean conditions. Only on the American Shoreline Podcast Network.

Photo credit: UC San Diego

Director of the Scripps Institute of Oceanography, Dr. Margaret Leinen

On this episode, host and NFCC Director Brad Warren sits down with Dr. Margaret Leinen, the Director of the Scripps Institute of Oceanography. Margaret Leinen, a highly distinguished national leader and oceanographer, was appointed the eleventh director of Scripps Institute of Oceanography at UC San Diego in July 2013. She also serves as UC San Diego’s vice chancellor for marine sciences and dean of the School of Marine Sciences. She joined UC San Diego in October 2013.

Leinen is an award-winning oceanographer and an accomplished executive with extensive national and international experience in ocean science, global climate and environmental issues, federal research administration, and non-profit startups. She is a researcher in paleo-oceanography and paleo-climatology. Her work focuses on ocean sediments and their relationship to global biogeochemical cycles and the history of Earth’s ocean and climate.

Photo caption: IFCclimate

Former President of Ireland, Mary Robinson

Welcome to the Changing Waters podcast, a new NFCC show in partnership with the American Shoreline Podcast Network about the ocean, the people who depend on it, and the people who are working to keep it healthy. On this special inaugural episode we are treated to a conversation with the former President of Ireland, Mary Robinson, a self-proclaimed climate justice activist.

The interview is conducted by Camorah King, a graduate student at the Middlebury Institute of International Studies.

Photo credit: University of Washington

Dr. Ray Hilborn on Fisheries

On this episode of Changing Waters, host Brad Warren sits down with Dr. Ray Hilborn, a marine biologist and fisheries scientist, known for his work on conservation and natural resource management in the context of fisheries. He is currently professor of aquatic and fishery science at the University of Washington. He focuses on conservation, natural resource management, fisheries stock assessment and risk analysis, and advises several international fisheries commissions and agencies. Dr Hilborn is a Fellow of the American Academy of Arts and Sciences and widely published.

Photo credit: NOAA

Killer Whales and the Food Web with NOAA Researcher Laurie Weitkamp

In the first of Changing Waters’ series on the plight of southern resident killer whales, National Fisheries Conservation Center’s Deputy Director Julia Sanders interviews NOAA researcher Laurie Weitkamp about the food web effects caused by recent heat waves in the Pacific ocean, including the “warm blob.” These changing conditions have caused major disturbances all the way up the food web: starting with microscopic plankton and ending with our beloved Orca whales. Learn more about what’s happening in our changing waters as temperatures rise and fisheries face abrupt disruptions — including the Chinook salmon that southern resident killer whales rely on.