Mark is a founding member of the Mesa Refuge board and an active member of the local and national community of writers. He is an investigative historian and former publisher and editor of Mother Jones magazine and former editor-at-large of InterNation, a transnational feature syndicate based in New York. His recent works include Conservation Refugees: The Hundred-Year Conflict Between Global Conservation and Native Peoples and American Foundations: An Investigative History. Mark has written and published more than 200 investigative magazine articles and has won 19 journalism awards including four National Magazine Awards. He teaches science at the U.C. Berkeley Graduate School of Journalism.
Mark is a Mesa Refuge neighbor, living on Tomales Bay in Inverness, California, with his wife, the artist Wendy Schwartz, and their yellow lab, Gracie.