After the Great Transformation
At some point over the last decade, the human population crossed a remarkable threshold. Today, over half of the human population lives in cities and towns, up from one-third in 1960 and only 3 percent in 1800. By 2050, the United Nations estimates, two-thirds of the global population will live in urban settings.
The shift from rural to urban represents far more than a change in settlement patterns. It brings with it profound changes in social, political, and economic organization: the urbanization of the planet has been largely inseparable from industrialization and the rise of market economies.