Charles Massy gained a Bachelor of Science at Australian National University (ANU) in 1976 before going farming for 35 years and developing the prominent Merino sheep stud “Severn Park”. Concern at ongoing land degradation and humanity’s sustainability challenge led him to return to ANU in 2009 to undertake a PhD in Human Ecology. Charles was awarded an Order of Australia Medal for his service as chair and director of a number of research organizations and statutory wool boards. He has also served on national and international review panels in sheep and wool research and development and genomics. Charles has authored several books on the Australian sheep industry, the most recent being the widely acclaimed Breaking the Sheep’s Back, which was short-listed for the Prime Minister’s Australian Literary Awards in Australian History in 2012. Nicolette Hahn Niman served as senior attorney for Waterkeeper Alliance, running their campaign to reform the concentrated production of livestock and poultry. In recent years, she has gained a national reputation as an advocate for sustainable food production and improved farm-animal welfare. She is the author of Righteous Porkchop and Defending Beef, and has written for numerous publications, including the New York Times, Los Angeles Times, HuffPost, and The Atlantic online. She lives on a ranch in Northern California with her husband, Bill Niman, and their two sons.