Population 7 Billion

The United Nations Population Fund estimates that in one week, on October 31, 2011, the world's population will reach 7 billion. Just 200 years ago, there were only 1 billion people on the planet, and over the next 150 years, that number grew to 3 billion. But in the past 50 years, the global population has more than doubled, and the UN projects that it could possibly grow to 15 billion by the year 2100. As the international organization points out, this increasing rate of change brings with it enormous challenges. Meeting the basic needs of so many will mean growing, shipping, and distributing more food while providing more clean water, health care, and shelter -- all without inflicting too much further damage on our environment.

Read more
Hints: View this page full screen. Skip to the next and previous photo by typing j/k or ←/→.

Most Recent

  • © Julian Ghahreman-Rad / 2016 Sony World Photography Awards

    Images From the 2016 Sony World Photography Awards

    The 2016 Sony World Photography Awards are now taking entries, and the organizers have been kind enough to share some of their early entries with us.

  • Ricardo Moraes / Reuters

    Red Sludge From Brazilian Dam Collapse Reaches the Atlantic

    Earlier this month, on November 5, two dams retaining tons of iron-mining waste in Brazil burst, releasing a massive flood of toxic sludge that has flowed downstream into Rio Doce, spending two weeks making its way several hundred miles downstream, finally reaching the Atlantic Ocean.

  • AP

    Today in History: November 23

    A look at various events that took place on this day, November 23, photographed over the past century. Today’s collection includes a sword-fighting Mussolini, a motorcycle-jumping Evel Knievel, William Shatner dressed as a gun-toting Santa Claus, and much more.

  • Yannis Behrakis / Reuters

    Welcomed to Europe

    As politicians debate the status of refugees, volunteers are working tirelessly to provide them with basic care.

Join the Discussion