Nigel Clark is Professor of Human Geography at Lancaster University. His current concerns include the pyrogeography of explosions, the evolution of human care and compassion, and interactions between the inner and outer Earth. He is the author of Inhuman Nature: Sociable Life on a Dynamic Planet (Sage, 2011) and co-author, with Bronislaw Szerszynski, of Planetary Social Thought: The Anthropocene Challenge to the Social Sciences (Wiley, 2021). He also co-editor, with Kathryn Yusoff, of a Theory, Cutlure & Society special issue on “Geosocial Formations and the Anthropocene” (2017).