Reading Material
Urbanisation — the movement of populations from rural to urban areas — is one of the defining demographic trends of the modern era. For most of recorded human history, the majority of people lived in agricultural communities in rural areas. This changed definitively in 2007, when, for the first time, the global urban population exceeded the rural population. Today, more than half of all people on Earth live in cities, and this proportion is expected to rise to approximately two-thirds by 2050.
The drivers of urbanisation are well-established. Economic pull factors — the concentration of employment opportunities, higher wages, better educational institutions, and improved healthcare — draw people from rural areas into cities. In many parts of the developing world, these factors are compounded by push factors: declining agricultural viability due to land degradation, climate variability, and the mechanisation of farming, all of which reduce the need for rural labour.
The consequences of rapid urbanisation are complex and uneven. On one hand, cities are centres of economic productivity, innovation, and cultural exchange. They facilitate knowledge transfer, enable specialisation, and generate the tax revenues that fund public services. On the other hand, rapid and poorly managed urban growth creates serious challenges. Provision of affordable housing, clean water, sanitation, and reliable energy to fast-growing urban populations strains the capacity of governments and municipalities.
Informal settlements — areas of unauthorised housing typically lacking basic services — are a direct consequence of urbanisation that outpaces planned infrastructure. An estimated one billion people currently live in such settlements globally. Addressing this challenge requires coordinated investment in urban planning, social housing, and the extension of essential services to underserved communities.