7 Billion Humans in 2011 | National Geographic Magazine: Federal Immigration Service Raid | Moscow, Russia

Federal Immigration Service Raid | Moscow, Russia

Uzbek Deportees in Federal Immigration Service Raid | Moscow, Russia

In some ways, the growth in the numbers of people matters less than the growth in the numbers of households. If each household has its own refrigerator, air-conditioner, TV and car, the average energy demand for a given number of people goes up as the average number of people in a household goes down.

—Joel E. Cohen, author of “How Many People Can the Earth Support?”

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