RT Report
T1 Green hills, blue cities: an ecosystems approach to water resources management for African cities
A1 United Nations Environment Programme, 
PB United Nations Environment Programme
SN 978-92-807-3154-5
YR 2011
FD 2011
LK https://wedocs.unep.org/handle/20.500.11822/8034
UL https://wedocs.unep.org/handle/20.500.11822/8034
NO Africa is currently the least urbanised region in the world, but this is changing fast. Of the billion people living on the African continent, about 40 per cent lives in urban areas. The urban population in Africa doubled from 205 million in 1990 to 400 million in 2010, and by 2050, it is expected that this would have tripled to 1.23 billion. Of this urban population, 60 per cent is living in slum conditions. In a time of such urban growth, Africa is likely to experience some of the most severe impacts of climate change, particularly when it comes to water and food security. This places huge pressures on the growing urban populations.
DS UN Environment Document Repository
RD Sep 22, 2026