Businessman, Philanthropist & Elder Son of Warren Buffet
Journalist & Best-selling Author of "Farm City: The Education of an Urban Farmer"
Ecological anthropologist and researcher on food, farming and biotechnology
Founder of The Organic Gardener Ltd. and Director of Chicago's Green City Market Edible Gardens
Scientist, Professor of Plant Pathology at the University of California - Davis; Expert in the Challenges of Farming