Urbanization and the future of cities - Vance Kite
View full lesson: http://ed.ted.com/lessons/urbanization-and-the-future-of-cities-vance-kite About 10000 years ago, hunter-gatherers, aided by rudimentary agriculture, moved to semi-permanent...
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Today ,more than half of all people in the world live in an urban area. By mid-century, this will increase to 70%. But as recently as 100 years ago, only two out of ten people lived in a city, and before that, it was even less. How have we reached such a high degree of urbanization, and what does it mean for our future? In the earliest days of human history, humans were hunter-gatherers, often moving from place to place in search of food. But about 10,000 years ago, our ancestors began to learn the secrets of selective breeding and early agricultural techniques. For the first time, people could raise food rather than search for it, and this led to the development of semi-permanent villages for the first time in history. "Why only semi-pe...
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Today ,more than half of all people in the world live in an urban area. By mid-century, this will increase to 70%. But as recently as 100 years ago, only two out of ten people lived in a city, and before that, it was even less. How have we reached such a high degree of urbanization, and what does it mean for our future? In the earliest days of human history, humans were hunter-gatherers, often moving from place to place in search of food. But about 10,000 years ago, our ancestors began to learn the secrets of selective breeding and early agricultural techniques. For the first time, people could raise food rather than search for it, and this led to the development of semi-permanent villages for the first time in history. "Why only semi-pe...
