Global Compact International Yearbook 2013
34
By 2050, our planet will be home to 9 billion people. The
world’s middle class will reach 4 billion; by 2020, 50 percent
of China’s population will be middle class. The world has
also become increasingly urban: In 1800, only 2 percent of
the world’s population was urban. Today, half of the world’s
people are living in towns and cities, with 180,000 people
added to the urban population each day.
By Mark Kenber
The Case for a
Clean Revolution