Cities are engines for sustainable development. It is where ideas, commerce, culture, science, and productivity thrives. Urban spaces offer opportunities for people to prosper economically and socially, but this is only possible in prosperous cities that can accommodate people in decent jobs and where land resources are not overwhelmed by growth.
Unplanned urban sprawl, as cities spill beyond their formal boundaries, can be detrimental to national development planning and to the global goals for sustainable development. Our urban areas are also emitters of greenhouse gases and contribute to climate change. Half of the global urban population breathes air that is 2.5 times more polluted than standards deemed acceptable by the World Health Organization.
More than half of the world’s population now lives in urban areas. By 2050, that figure will have risen to 6.5 billion people – two-thirds of all humanity. Sustainable development cannot be achieved without significantly transforming the way we build and manage our urban spaces.
Extreme poverty is often concentrated in urban spaces, and national and city governments struggle to accommodate the rising population in these areas. Making cities safe and sustainable means ensuring access to safe and affordable housing, and upgrading slum settlements. It also involves investment in public transport, creating green public spaces, and improving urban planning and management in a way that is both participatory and inclusive.
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