PLANETOBSERVER / SCIENCE PHOTO LIBRARY PLANETOBSERVER / SCIENCE PHOTO LIBRARY
Shanghai urban spread. Satellite images of Shanghai, China in 1979 (top), 2001 (centre) and 2013 (bottom), showing how the urban area (grey) has expanded over the years to cover more of the surrounding countryside (green). The Huangpu (centre) and Yangtze (top right) rivers can also be seen.
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