Because many people have trouble with very large numbers, what if you reimagined the billions of humans on Earth as a slightly more manageable number? Say, 100? If 100 people represented the current population of the Earth:
25 people would be 0-14 years old
31 would be Christian
23 would be Muslim
15 would be Hindu
6 would speak Spanish
5 would speak English
54 would be urban dwellers
11 would live on less than $1.90 USD per day
95 live in an area with a mobile-cellular network
And some that are not on that page:
1 person would die every 15 months
2 people would be born every 6 months
1350 people would have died, all-time
From the WSJ, a big package on how life will be in 35 years: 2050: Demographic Destiny. In the developed world, the future will be smaller.
Next year, the world’s advanced economies will reach a critical milestone. For the first time since 1950, their combined working-age population will decline, according to United Nations projections, and by 2050 it will shrink 5%.
As Dave Pell writes in Nextdraft:
In other words, it turns out that the big problem in the world isn’t that there are too many people, but rather that there are too few (Thanksgiving dinners excepted).
This is likely the pull-quote of the week (I’ve seen it on about 20 sites in the last 10 minutes):
Of all the people in human history who ever reached the age of 65, half are alive now.
But only by a little…there’s lots more to chew on in the full article. Like how 65 became the retirement age:
The idea of a retirement age was invented by Otto von Bismarck in the 1880s, when as chancellor of Germany he needed a starting age for paying war pensions. He chose the age of 65 because that was typically when ex-soldiers died.
Pew Research Center’s interactive maps of migration flows in the US are pretty interesting. The region map makes it seem as though the Northeast is rapidly losing population to the South but the states map clarifies the picture…the flow looks to be hundreds of thousands of retirees moving to Florida and Georgia.
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.
Morning subway demographics in NYC. Early morning blue collar workers give way to late morning white collar workers. (via capn)