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Global challenges in cities: With a focus on Africa
2006
World Health Organization (WHO)
Cities are growing fast worldwide; at present, nearly half of the world’s population lives in urban areas. Demographers agree that that proportion
will continue to grow, with most of the growth occurring in developing countries. Africa and Asia have the lowest urbanization levels but are experiencing
the most explosive urban growth rates. Cities offer more opportunity for employment, entertainment and delivery of social services. However, more people
and activities, greater levels of consumption and dependence on transport systems produce more waste, pollution and accident risks. These pose major
public health challenges, and with appropriate policies and action, health in cities can be improved.
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