John Michael Greer is a scholar of ecological history and an internationally renowned Peak Oil theorist whose blog, "The Archdruid Report," has become one of the most widely cited online resources dealing with the future of industrial society. He is the author of more than 30 books including The Wealth of Nature and The Long Descent. As well as being a certified Master Conserver and devoted organic gardener, Greer continues to practice a myriad of skills honed during the appropriate tech movement of the 1970s. He has been active in the contemporary nature spirituality movement for more than 25 years.