How Farming Almost Destroyed Ancient Human Civilization
Annalee Newitz

11/17/14 5:50pmFiled to: ARCHAEOLOGY
Roughly 9,000 years ago, humans had mastered farming to the point where food was plentiful. Populations boomed, and people began moving into large settlements full of thousands of people. And then, abruptly, these proto-cities were abandoned for millennia. It's one of the greatest mysteries of early human civilization............
http://io9.gizmodo.com/how-farming-almost-destroyed-human-civilization-1659734601