UN World Population Day: Crowded planet

Thousands of people crowd the ticket windows at Beijing Railway Station, Feb 16, 2007. The United Nations World Population Day is observed on July 11 every year to raise awareness on global population issues since 1989. Huge crowds can be seen all over the world. At present, the world's population is more than 7 billion people, and is estimated to reach 10 billion by 2100. [Photo/icpress.cn]