Image: World map of urban areas.

Data courtesy ORNL LandScan 2004™ /UT-Battelle, LLC

Cities and Suburbs

Urban areas are cultural and technological epicenters ranging from quaint municipalities to sprawling megacities. They have existed for millennia. But over the last half century, their size and influence has been expanding rapidly, particularly in emerging nations like China and India.

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How to Feed Our Growing Planet

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    Feed the World

    National Geographic explores how we can feed the growing population without overwhelming the planet in our food series.

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National Geographic Magazine

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    Water Grabbers: A Global Rush on Freshwater

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