Farnum established one of the earliest sustainable advisory services in the country in the 1980’s. Prior to launching Arjuna Capital, Farnum served as Senior Vice President, Chief Strategist, and Technical Analyst at Trillium Asset Management, a pioneer in responsible investing. He founded the nonprofit Open Media and Information Company Initiative (OpenMIC), a shareholder coalition promoting an open, competitive digital ecosystem. He has served on the Boards of the Future of Music Coalition, the Public Media Company, the Nasher Museum, Duke Performances, and the Art of Cool Project, and received his bachelors, masters and doctoral degrees in philosophy from the University of North Carolina at Chapel Hill.