Cruise ship accident: First victim identified View the interactive graphic
[Then & Now] Images from space track relentless spread of humanity
The past century has been defined by an epic migration of people from rural areas to the city. In 2008, for the first time in history, more of the Earth’s population was living in cities than in the countryside. The U.N. now predicts that nearly 70% of the global population will be city dwellers by 2050.