"Recounted in numberless articles and books, the Maya collapse has become an ecological parable for green activists; along with Pleistocene overkill, it is a favorite cautionary tale about surpassing the limits of Nature. The Maya "were able to build a complex society capable of great cultural and intellectual achievements, but they ended up destroying what they created," Clive Ponting wrote in his influential Green History of the World (1991). Following the implications of the Maya fall, he asked, "Are contemporary societies any better at controlling the drive toward ever greater use of resources and heavier pressure on the environment? Is humanity too confident about its ability to avoid ecological disaster?" The history of these Indians, Ponting and others have suggested, has much to teach us today."