Foreword / Rush Holt and Jeanne Braha -- Introduction to this book / Susanna Priest, Jean Goodwin, and Michael F. Dahlstrom -- Part 1. How ethics matters. Effective because ethical : speech act theory as a framework for scientists' communication / Jean Goodwin -- Communicating science-based information about risk : how ethics can help / Paul B. Thompson -- Communicating climate change and other evidence-based controversies : challenges to ethics in practice / Susanna Priest -- Framing science for democratic engagement / Leah Sprain -- Part 2. Professional practice. Exploring the ethics of using narratives to communicate in science policy contexts / Michael F. Dahlstrom and Shirley S. Ho -- Science communication as communication about persons / Brent Ranalli -- Journalists, expert sources, and ethical issues in science communication / Marjorie Kruvand -- The ethics and boundaries of industry environmental campaigns / Barbara Miller Gaither and Janas Sinclair -- Scientists' duty to communicate : exploring ethics, public communication, and scientific practice / Sarah R. Davies -- Part 3. Case studies. Just the facts or expert opinion? : the backtracking approach to socially responsible science communication / Daniel J. McKaughan and Kevin C. Elliott -- Controversy, commonplaces, and ethical science communication : the case of consumer genetic testing / Lora Arduser -- Excluding "anti-biotech" activists from Canadian agri-food policy making : ethical implications of the deficit model of science communication / Kelly Bronson -- Science communication ethics : a reflexive view / Alain Létourneau -- How discourse illuminates the ruptures between scientific and cultural rationalities / Cynthia-Lou Coleman -- Afterword / Susanna Priest, Jean Goodwin, and Michael F. Dahlstrom