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Facts to know about world population

Photos Logo Photos | Slide 1 of 16: BANGALORE, INDIA: An Indian school children wear t-shirts with a family planning message during a rally to mark the World Population Day in Bangalore, 11 July 2002. India's population passed the one billion mark in August 1999, making it the second member of the exclusive one billion club, along with China. AFP PHOTO/Indranil MUKHERJEE (Photo credit should read INDRANIL MUKHERJEE/AFP/Getty Images)

World Population day, celebrated annually on July 11, was conceived in 1989 by the Governing Council of the United Nations with an aim to focus on urgent population issues. This year's theme is “Family Planning: Empowering People, Developing Nations.” We look at interesting facts about world population. (Pictured) An Indian school children wear t-shirts with a family planning message during a rally to mark the World Population Day in Bangalore, India.

© Indranil Mukherjee/AFP/Getty Images
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