"The visualization depicts the world's 590 most populous cities, sorted column by column according to their population size between 1950 and 2010, with projections for 2015, 2020, 2025, and 2050" (via PD Smith)
I look at this chart and I think of demographic transition.... and huge Chinese internal migration
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2 comments:
I look at this chart and don't understand a single thing... =\
Try to see this as a flow chart. Each line represents one city and each column represents one year between 1950 and 2050. And all these 590 cities are ranked year after year (column by column) according to their population size, so the trend lines reflect relative changes the city’s position on the rank.
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