It’s been called the largest migration in human history: An estimated 320 million Chinese will leave small villages and rural counties to start new lives in cities over the next decade and a half.
It’s the equivalent of everyone in the United States packing their belongings and changing addresses.
Pollution is choking Chinese cities. Breakneck growth has sapped urban areas of their character. Millions of new city dwellers work at low-wage jobs and don’t have access to social services.