how much of the world is urbanised
The majority of the world s population will soon live in urban rather than rural areas. Adding a spatial dimension to population estimates, a new study finds that as much as three percent of the Earth s land area has already been urbanized, which is double previous estimates.RUMP delineates urban boundaries across the planet ranging in size from 1 km 2 to the largest of urban extents, Tokyo, which includes more than 500 connected settlements and is the largest urbanized area in the world at 30,000 km 2.