Tim Lenton is Professor of Climate Change and Earth System Science at the University of Exeter.  He has had a lifelong interest in the Gaia Hypothesis and much of his recent work has been building on the work of James Lovelock, highlighting mechanisms by which the Earth system has been stabilised by negative feedbacks throughout Earth history.  In this interview, Tim discusses his work with Bruno Latour, exploring how humans could add some level of self-awareness to Earth’s self-regulation.