Tag: City

When the city harms its own water resources
In areas where surface water is not readily available (located far from areas of need), groundwater is the primary water source. Groundwater aquifers supply an estimated 20% of the global population living in arid and se...
01 Oct 2009 - by Philippe Rekacewicz
Urban growth rate in Africa
Africa’s urban centres are currently growing at an annual rate that is the fastest compared to other regions. The urban expansion is expected to continue, with cities like Abuja and Ouagadougou expecting very high growth...
27 Feb 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Water supply and demand in Nairobi
The bulk of water supply for Nairobi comes from Thika, Sasumua and Ruiru Dams, as well as the Kikuyu Springs. Over time water supply for the city has failed to meet demand. The current estimated water demand for Nairobi ...
18 Mar 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Urban population trends, Kenya and Nairobi
As the total urban population of Kenya continues to grow, the capital of Nairobi still harbours the largest share of the country’s urban population. Between 1948 and 2009, Nairobi’s share of the country’s urban populatio...
18 Mar 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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