Sebastian Ureta is an associate professor at Departamento de Sociología, Universidad Alberto Hurtado (Santiago, Chile). His main research interest is the study of the multiple frictions and overflows produced by attempts to manage and regulate industrial waste in Chile, especially the one produced by mining. In 2022 the University of California Press will publish his new book, coauthored with Patricio Flores, “Worlds of Gray and Green: Mineral extraction as ecological practice”.