Janamitra Devan looks at trends and predicts what the world will look like in 2100:
It took about a million years for the global human population to reach 1 billion in 1800. In the next 200 years, it reached 6 billion, and it will take only about 13 more years to add another billion. By 2100, the United Nations estimates that the global population will level off at about 10 billion, thanks to rising living standards and more widespread population control. By the end of 2008, slightly less than 50 percent of the global population lived in cities. If economic development proceeds at today’s pace, over the next century or so it is highly likely that 8 billion people will live in urban centers, up from today’s roughly 3.3 billion.
Avent has some thoughts of his own.
(Photo by Byron Barrett)