Discussion with Dr. Alister Scott on the things that drive us and our perspectives on the environmental challenges facing humanity. It’s always heartening to speak to people that take a positive perspective and I was particularly pleased to renew my acquaintance with Dr Alister Scott. We worked together on a task force set up by Sir Ed Davey to develop policy options for a green economic recovery. The discussion considers how we can respond to the environmental threat in ways that are positive and constructive.