As difficult as it is to believe, the black and blue areas above, each have exactly the same number of people living in the them.
This map shows the catastrophic decline in the population of Ireland during the decade from 1841 to 1851. The census taken in 1841 recorded a population of 8,175,124, while the 1851 census counted 6,552,385, a drop of over 1.5 million in 10 years.
The map above, by Bill Rankin at Radical Cartography, shows what percentage of humans living on earth, live within 10,000 km of you. Or to put it a slightly different way how many people live on your half of the world (your own personal hemisphere).
There are a few interesting things to note about the map.
According to the UN, Tokyo is the world’s most populous metropolitan area with an estimated 37.8 million people in 2014. The next closest is the Seoul National Capital Area with a population of 25.6 million people or over 10 million fewer than Tokyo!
So how does this compare to US cities?
The map above shows one of history’s most astounding global shifts; the drop in fertility rate between 1970 and 2014. The total fertility rate (TFR) is the average number of children born to each woman in a country. It’s important because, it’s an easy way to tell if a country is growing or not, excluding immigration/emigration.