is a public philosopher and former political scientist. He is the author of several books, including Carpe Diem: Seizing the Day in a Distracted World, and is the founder of

is professor emeritus of journalism at the University of Texas at Austin and collaborates with the Ecosphere Studies program at The Land Institute. He is the author of 12 books,

is Chancellor’s Professor of Public Policy at the University of California at Berkeley and Senior Fellow at the Blum Center for Developing Economies. He is a former United States Secretary

is an environmental journalist, author, and poet based in New York.

is Senior Fellow-in-Residence of the Post Carbon Institute and is regarded as one of the world’s foremost advocates for a shift away from our current reliance on fossil fuels. He