Robert Cox (PhD, University of Pittsburgh) is Professor Emeritus of Communication Studies and the Curriculum for the Environment and Ecology at the University of North Carolina at Chapel Hill. His principal research areas are environmental and climate change communication, and strategic studies of social movements. One of the nation's leading scholars in environmental communication, Cox is editor of Environmental Communication, a 4-volume reference collection (SAGE, 2016), coeditor of The Routledge Handbook of Environment and Communication (2015), and author of numerous studies of environmental, climate and other social change campaigns. He served three times as President of the Sierra Club, the largest grassroots U.S. environmental organization, as well as serving on the board of directors for Earth Echo International. Cox has campaigned on environmental concerns with former Vice President Al Gore, singer Melissa Etheridge, and other public figures; he continues to advise environmental groups on their communication programs, and regularly participates in environmental and climate change initiatives such as the Peoples Climate March. He has enjoyed hiking in the Himalayas and the southern Appalachian Mountains in the U.S.