19.20.21 (19 cities in the world with 20 million people in the 21st century) is a nice site for an effort to undertake "a five-year study that will encompass all aspects of the phenomenon of supercities" but the real attraction are the maps of the world's largest cities through time (Menu/10 Largest Cities). In 1000, the largest city in the world was Cordova, Spain and by 1500, 4 of the top 10 were in China and one was in Nepal. (via snarkmarket)
An analysis of how populations are growing and shifting around the US, with a focus on the policital consequences. He splits the country into four main areas: Coastal Megalopolises, Interior Boomtowns, Rust Belt, and Static Cities. "The bad news for them is that the Coastal Megalopolises grew only 4% in 2000-06, while the nation grew 6%. [...] You see an entirely different picture in the 16 metro areas I call the Interior Boomtowns (none touches the Atlantic or Pacific coasts). Their population has grown 18% in six years."
The must-see link for today is Social Explorer. Jump right to the maps section or to the New York City % White 1910-2000 and the the New York City % Black 1910-2000 slideshows. Running the shows forward, you can see blacks settling into Harlem, Brooklyn, and Queens and then spreading out from there. I wish it were slightly easier to make slideshows, but it's still really fun to play around with all the maps. (via vsl)
Nine months after the World Cup, Germany is experiencing a baby boom, which is good news because Germany's birth rate is among the lowest in the world.
Breathing Earth is a map of the earth that shows, in realtime, births, deaths, and carbon dioxide consumption of the world's countries. Mesmerizing to watch. (via snarkmarket)
Morning subway demographics in NYC. Early morning blue collar workers give way to late morning white collar workers. (via capn)
