Collapse - how societies achieve failure or success

"A great effort is based on a deep understanding, clearly and enthusiastic, it is also the most prominent book for this year, which rewards an annual academic curriculum by a specialized and shiny professor, all for the price of a book." Business Week. Whoever is not surprised when he saw the abandoned temples in Angkor Watt or the Mayan cities wrapped in the bush, and asks: "Can we receive the sa...