The author was in conversation with Rohini Nilekani, chairperson, Arghyam Foundation, R Sukumar, Professor, Centre for Ecological Sciences, IISc, J Srinivasan, Professor, Centre for Atmospheric and Oceanic Sciences, R Sukumar, Professor, Centre for Ecological Sciences, IISc, writer Amitav Ghosh and Rohini Nilekani, chairperson, Arghyam Foundation, at the launch of Ghosh’s book The Great Derangement – climate change and the unthinkable,’ in the city on Wednesday.