Guy McPherson is professor emeritus of natural resources and the environment at the University of Arizona, where he taught and conducted research for 20 years. He's published more than 100 articles along with eleven books, including Walking Away From Empire and his most recent, Going Dark, published in October 2013. Guy has focused for many years on conservation of biological diversity and lives in an off-grid, straw-bale house where he practices durable living via organic gardening, raising small animals for eggs and milk, and working with members of his rural community. Learn more at guymcpherson.com or email Guy at grm@ag.arizona.edu.