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SlideshowReport

Human population growth, 1700 - present

Description
Populations continue to rise in most countries
Particularly in developing nations
Although the rate of growth is slowing, we are still increasing in absolute numbers
How much is 7.3 billion?
It would take 30 years, counting once each second, to reach 1 billion

It took all of human history- after 1880 - to reach 1 billion
In 1960 we reached 3 billion, and added the next billion in 14 years (1974)
The most recent billion took only 12 years
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