![]() The region with the highest percentage of slum dwellers is sub-Saharan Africa, where more than half the urban population live in slums. This translates into more than 1 billion people, 85 per cent of whom live in three regions – Central and Southern Asia (359 million), Eastern and South-Eastern Asia (306 million), and sub-Saharan Africa (230 million). In 2020, about one in four urban dwellers lived in slums or informal settlements. Leaving no one behind will require an intensified focus on urban slums – home to 1 billion people Strengthening the preparedness and resilience of cities, including through high-quality infrastructure and universal access to basic services, is crucial in the recovery phase and in our ability to respond to future crises. The deep inequalities exposed by the COVID-19 pandemic and other cascading crises further highlight the importance of sustainable urban development. However, rapid and poorly planned urbanization leads to many challenges, including a shortage of affordable housing, insufficient infrastructure (such as public transportation and basic services), limited open spaces, unsafe levels of air pollution, and increased climate and disaster risk. If well-planned and managed, urban development can be sustainable and can generate inclusive prosperity. However, they also account for more than 70 per cent of global greenhouse gas emissions. Cities are drivers of economic growth and contribute more than 80 per cent of global GDP. By 2050, an estimated 7 out of 10 people will likely live in urban areas. ![]() ![]() Today, more than half the world’s population live in cities.
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