World Population Set to Reach 10 Billion By End of Century
![](https://media.wnyc.org/i/800/0/c/85/1/shutterstock_86973980.jpg)
Unidentified pedestrians at Shibuya crossing on November 20, 2010 in Tokyo, Japan. The famous scramble crosswalk is used by over 2.5 million people daily.
( Thomas La Mela / Shutterstock )
( Thomas La Mela / Shutterstock )
Produced by Tyler Adams