Growth in population by city scales 0–20
2,500
21–40 41–60 >60
2,000
no data
1,500
Flood Events, 1970-2011. Source: EM-DAT: The OFDA/CRED International Disaster Database www.emdat.be Université Catholique de Louvain - Brussels - Belgium”
1,000
500
0 1950
1960
1970
1980
1990
Fewer than 500,000
500,000 to 1 million
1 to 5 million
5 to 10 million
Growth in population by city scales. Source: based on Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat, World Population Prospects: The 2008 Revision and World Urbanization Prospects: The 2009 Revision.
2000
2010
2020
10 million or more 1–2 million 2–3 million 3–5 million > 5 million
Urban agglomerations with more than 750,000 inhabitants, 2010. Source: United Nations, Department of Economic and Social Affairs, Population Division; World Urbanization Prospects: The 2009 Revision; File 12: Population of Urban Agglomerations with 750,000 Inhabitants or More in 2009, by Country, 1950-2025 (thousands)
28
29