Chart of Human Population Growth by Region
Directly or indirectly, the human species already captures nearly 40% of the total biological productivity on land and 70% of the productivity of the marine environment—the "net primary productivity" of the planet—for its exclusive use. The rate of increase in human use is about 2% per year."
The UN defines a slum household as a group of individuals living under the same roof with one or more of the following conditions: lack of access to improved water; lack of access to improved sanitation; insufficient living area; and lack of durability of housing. Although the overall proportion of the urban population living in slums worldwide fell from 28% in 2000 to 23% in 2014, in absolute terms, the number of urban residents living in slums rose from 792 million to an estimated 880 million over the same period. In Least Developed Countries, nearly two-thirds (62%) of urban dwellers live in slum conditions.
2005 version of this chart
Map Data Source: Center for International Earth Science Information Network, Columbia University, “Grided Population of the World”
Text: UNESCO World Water Assessment Programme, Office for Global Water Assessment; www.unesco.org/water/wwap
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