7 Billion And Counting: World Population Hits A MilestoneAs Earth's human population hits 7 billion, there's little agreement on what its future growth will look like. And different countries all face their own challenges to maintain a stable, productive population.
7 Billion And Counting
Different countries all face unique challenges to maintain a stable, productive population.
Immigrants like these Indians at a Sikh festival in Barcelona are bolstering Europe's stagnant population growth rate.
Randy Olson/National Geographic
Sharing a hillside with high-rise apartment dwellers, children dance at a shop in one of the squatter communities that ring Caracas, a city of 3 million. Today, one in seven people live in slums. Providing them with better housing and education will be one of the great challenges facing a world of 7 billion people and counting.
Jonas Bendiksen/Magnum Photos