The Noke Koi are an Indigenous group from Acre, Brazil who consider themselves guardians of the psychoactive plant brew ayahuasca, which they call “uni.” This summer, they traveled to the U.S. to spread an urgent message: their home in the Amazon is being destroyed.

For a transcript of this episode, please visit this link.

Co-produced by PRX and the UC Berkeley Center for the Science of Psychedelics, Altered States is an award-winning podcast, taking home a 2025 Signal Award for Science and the 2026 Webby Award for Science and Education. To learn more, visit us our website.