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 egress 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 easterly Island where explorers found evidence of an advanced culture demonstrated by the huge statues plainly 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 converse refine the trees to form a runner net bring in to move the 20foot statues around. The inhabitants cutting down all the trees to move statues leaving nothing for building, set 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 forthwith the few peoples who however forage have a mundane calorie consumption of 2100 calories on three days work a hebdomad leaving four days a week for leisure. In foraging cultures food was seen as popular resource purchasable to all. The move to farming allowed people to lay down 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 describes 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. Areas of timber were cleared for farming in a slash! and hit the roof style. Sometimes the forest would recover basic by bit to scrub then... If you want to get a full essay, smart set it on our website: OrderEssay.net

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