Interconnectedness is a major theme of Changing Planet, Changing Health: How the Climate Crisis Threatens our Health and What We Can Do about It. Jeffrey Sachs describes the book in his preface as “a scientific detective story of the first order, told with brilliance and relish by one of the world’s great ecological detectives”. The detective is physician and public health scientist Paul Epstein. He has co-authored the book with science writer Dan Ferber.