World overpopulated?-----Half the World's Population Lives in Just 1% of the Land [Map] - Metrocosm

Half the World's Population Lives in Just 1% of the Land [Map] - Metrocosm:

The yellow region in the map includes every cell with a population of 8,000 or more people. Since each of them has an area of about 9 square miles, the population density of each yellow cell is at least 900 people per square mile, roughly the same population density as the state of Massachusetts.

Conversely, the black region is made up of those cells with populations of less than 8,000 people. In other terms, the population density throughout the black area is less than 900 people per square mile.