What really is ‘Nature’? Why should we care about preserving it? Jonah Woodward and Alexandros Constaninou are joined by Martin Bunzl, Emeritus Professor of Philosophy at Rutgers University and author of the new book ‘Thinking While Walking: Reflections on the Pacific Crest Trail’. They discuss how the human conception of the natural world has changed over time, the difficulties we face in attempting to tackle climate change and environmental destruction, as well as possible solutions to these problems.