Professor of the History of Science and Affiliated Professor of Earth and Environmental Sciences, Harvard University. Author of numerous books, articles and opinion pieces. Most recent books: Merchants of Doubt (2010), short-listed for the Los Angeles Times book prize and released as a documentary film in early 2015; The Collapse of Western Civilization (2014), both co-authored with Erik M. Conway. Recipient of numerous prizes and awards, including: 2015 Herbert Feis Prize, American Historical Association, for contributions to public history.