Steph Speirs on The Nature of Capital and Ensuring Life Thrives

The Nature Of with Willow Defebaugh

Wealth is often defined by accumulation—but what if it was instead measured by what we sustain, regenerate, and share? In this episode, Willow speaks with Steph Speirs, co-founder of Solstice and board member of the Sierra Club Foundation, about how capital—in all its forms—can be stewarded to better support a flourishing planet. Together, they explore the shifting definition of wealth beyond money, the power of community in the clean energy transition, and how movements like the Sierra Club Foundation’s Shifting Trillions initiative are working to redirect financial flows from extraction to regeneration. At the heart of their conversation is a question both urgent and hopeful: What does it look like to resource a future where people and ecosystems thrive together?

Season one of The Nature Of is made possible in part by funding from the Sierra Club Foundation.

If you’re interested in learning more about the Sierra Club Foundation, check out their website and other projects they’re supporting:

Shifting Trillions - sierraclubfoundation.org/shifting-trillions

Sage Development Authority - anpetuwi.com

Solar Holler - solarholler.com

Navajo Power - navajopower.com

Podcast production by Magnificent Noise

Series photography by Camila Falquez

Episode photography by Arianna Lago

Executive Producers: Willow Defebaugh, Theresa Perez, Jake Sargent

Special thanks to Karen Gray, Jasmine Hardy, Tessa Forrest, Ásta Þrastardóttir, Jonas Woost, Kattie Laur