The tires of your car have a chemical in them, called 6PPD, that slows tire degradation by binding with oxygen and ozone that could break down the rubber. But these same reactions that protect the rubber are also creating a new chemical, called 6PPD-quinone, which scientists just found in 2020 to be highly toxic to aquatic organisms.

6PPD is in essentially every tire made since the 1960s, and aquatic ecosystems around the world, particularly in dense urban areas, are in danger.

Coho salmon is particularly susceptible to the toxin, and salmon populations in the Seattle area have been decimated by stormwater runoff containing the tiny particles that wear off tires as they speed down the road.

Now that the science is clear, the search is on to find a substitute for 6PPD; but for many years to come, the pollutants will continue to shed from our tires and into our waterways.

How to stop the stormwater from getting to the salmon and other aquatic organisms is one of the many ways that the Puget Soundkeeper Alliance is advocating for the ecological health of Puget Sound and other waterways in the Seattle area.

Sean Dixon leads these efforts as the executive director of the Puget Soundkeeper Alliance, which is part of the worldwide network of waterkeepers.

I discuss with Sean the work he’s doing in Seattle but also the waterkeeper movement more broadly and the importance of organized, community-engaged action to protect waterways and the diverse ecosystems that depend on them across the planet.

This episode of Chrysalis is part of the Chrysalis Projects series. You can listen on Substack, Apple Podcasts, and other podcast platforms.

Please rate, review, and share to help us spread the word!

Sean Dixon

As Executive Director of Puget Soundkeeper, Sean works with the entire Soundkeeper staff team, board, and network of community partners, volunteers, and advocates to drive clean water progress across the Puget Sound and its watershed. As an attorney, entrepreneur, and environmental advocate, Sean has worked for years defending communities and ecosystems from pollution, supporting sustainable fisheries, pushing for climate adaptation and mitigation, and fighting for innovative approaches to solving the myriad threats facing our oceans, coasts, and waterways. Before moving to the PNW, Sean worked as an attorney at Hudson Riverkeeper, a local sustainable seafood fishmonger, and, most recently, as Chief of Staff for the Region 1 (New England) office of the U.S. Environmental Protection Agency.

Sean currently serves as the Publications Officer for the American Bar Association’s Section of Environment, Energy, and Resources, and holds an LL.M. in Climate Change Law and a J.D. in Environmental Law from the Elisabeth Haub School of Law at Pace University, in White Plains, NY, a master’s degree from the Yale School of the Environment, and a B.A. in Marine Biology and Oceanography from Boston University.

Recommended Readings & Media

Credits

This episode was researched by Lydia Montgomery and edited by Sarah Westrich, with additional editing by Isabella Nurt, Amy Cavanaugh, Arthur Koenig, Kate Fair, and Marta Kondratiuk. Music is by Daniel Rodriguez Vivas. Mixing is by Morgan Honaker.

I love beautiful pictures of animals surrounded by their natural habitats. It’s exhilarating to see idyllic environments and the animals so amazingly well-adapted to live in them. It’s also comforting to know those places still exist, despite what we’re doing to the planet.

But there’s a danger in that exhilaration and comfort: these animals appear to live in a world so separate from our own, and at the same time, we might be lulled into thinking that this other world and these habitats are safe.

Kara Maria’s paintings take a very different approach to representing animals. Her work features extinct, endangered, and invasive species, but they all float in abstract worlds, popping with color and soaked in the impact of humans on their lives.

Kara’s work is captivating. It’s also an alarm sounding about the dire threat that Earth’s biodiversity faces in the age of humans. Her paintings of animals bring the biodiversity crisis to our front doorstep and spur us to think about how our actions are at the root of the ecologically devastating changes happening around the world.

Kara Maria is based in San Francisco, and her work is held in the permanent collections of the Berkeley Art Museum, the Crocker Art Museum in Sacramento, the Fine Arts Museums of San Francisco, and the San Jose Museum of Art, among others. She’s been awarded a number of artist residencies, including the Recology Artist in Residence Program at the San Francisco Recycling and Transfer Center, which we talk about in this episode.

This episode is part of the Chrysalis Artists series. You can listen on Substack, Apple Podcasts, and other podcast platforms.

Please rate, review, and share to help us spread the word!

Kara Maria

Kara Maria makes paintings and works on paper that reflect on Earth’s biodiversity crisis and the place of endangered species in our increasingly unstable environment. Borrowing from the broad vocabulary of contemporary painting, Maria blends geometric shapes, vivid hues, and abstract marks with representational elements. Her recent work features miniature portraits of disappearing animals, focusing attention on the alarming rate of extinction now being caused by human activity.

Maria received her BA and MFA from the University of California, Berkeley. She has exhibited work in solo and group shows throughout the United States at venues including the de Saisset Museum, Santa Clara University, CA; the Sonoma Valley Museum of Art, Sonoma, CA; the Nevada Museum of Art, Reno, NV; the Contemporary Arts Museum, Houston, TX; and the Katonah Museum of Art in New York.

Her work has received critical attention in the Los Angeles Times, the San Francisco Chronicle, and Art in America. In addition, Maria has been selected for many awards and honors, including a grant from Artadia, New York, NY; an Eisner Prize in Art from UC Berkeley; and the Masterminds Grant from SF Weekly. She has been awarded artist residencies at the Montalvo Arts Center, Recology Artist in Residence Program, Djerassi Resident Artists Program, and at the de Young’s Artist Studio.

Maria’s work appears in the permanent collections of the Berkeley Art Museum and Pacific Film Archive (BAMPFA); the Crocker Art Museum in Sacramento; the Fine Arts Museums of San Francisco (Achenbach Foundation); the San Jose Museum of Art; and the Cantor Center at Stanford University; among others.

Recommended Readings & Media

Credits

This episode was researched by Lydia Montgomery and edited by Sarah Westrich, with additional editing by Arthur Koenig and Marta Kondratiuk. Music is by Daniel Rodriguez Vivas. Mixing is by Morgan Honaker.

If you enjoyed my conversation with Kara, please rate and review us on your favorite podcast platform.