A Green History of the World - The Environment and the Collapse of Great Civilizations by Clive Ponting. A summary of the book and his theory

The desserts and jungles are littered with abandoned ancient cities from civilizations that failed with let on explanation. The synopsis on the back of the book says that it analysis why the great civilizations declined in terms of changes in their environment. The book starts off at east wind Island where explorers found evidence of an advanced culture demonstrated by the huge statues except the current inhabitants were living in caves and had no idea how the statues got there. The theory of the book is that the people ex intercourse graduate the trees to form a runner net grow to move the 20foot statues around. The inhabitants glow down all the trees to move statues leaving nothing for building, forwardness or building canoes. The main theme of the book is that in one case humans progressed past small groups of hunter gathers they began to strain the force of the land to repair itself. Even now the few peoples who however forage have a free-and-easy calorie consum ption of 2100 calories on three days work a hebdomad leaving four days a week for leisure. In foraging cultures food was seen as plebeian resource purchasable to all. The move to farming allowed people to discover a unneeded of food from a limited but at a cost of more labour and slight free time.

The good of the surplus was that the society could support specia diagnoses such(prenominal) as potters and craftsmen. later on adding clerics, administrators and a military to the list of specialist. The First use of paternity was to record crop movements into and out of central stores not as a means of communication or archiving knowledge. Initially the world was cover in trees. Ar eas of lumber were cleared for farming in a! slash and cut off style. Sometimes the forest would recover basic by move to scrub then... If you want to get a full essay, pose it on our website: OrderEssay.net

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