From the archive: The Anthropocene epoch: have we entered a new phase of planetary history?

We are raiding the Audio Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2019: Human activity has transformed the Earth – but scientists are divided about whether this is really a turning point in geological history. By Nicola Davison. Help support our independent journalism at theguardian.com/longreadpod