Cities and Urbanization

These are the world’s fastest growing cities. They've got something else in common

A general picture shows the skyline of Tanzania's port cty of Dar es Salaam, July 12, 2013. Tanzania's commercial capital looks like a boom town even before cash rolls in from gas discoveries that in the next few years could make the east African nation a major energy exporter. Glass-clad tower blocks pierce Dar es Salaam's sky-line and more are emerging from noisy building sites. Billboards advertise high-definition televisions and other electronics to a new middle class, who crowd brand new shopping malls.  REUTERS/Andrew Emmanuel (TANZANIA - Tags: SOCIETY BUSINESS ENERGY CITYSCAPE) - RTX11L78

The skyline of Dar es Salaam. REUTER/Andrew Emmanuel Image: REUTERS/Andrew Emmanuel

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Cities and Urbanization

You may not be surprised to learn that – worldwide – more people live in urban areas than in rural areas. That number is growing fast and by 2050 it’s anticipated that 66 per cent of the world’s population will be urban. The findings are presented in the World Urbanization Prospects 2014 Revision by the UN’s Department of Economic and Social Affairs.

Here are the top ten fastest growing cities in the world – and their projected growth by 2025:

 The world's fastest growing cities

The top 10 are all African - a measure of how fast the African content is growing.

Zooming out a little to look at individual countries, the report states that ‘just three countries – India, China and Nigeria – together are expected to account for 37 per cent of the projected growth of the world’s urban population by 2050’.

A vast majority of the world's rural inhabitants live in Asia, but projected growth is fastest in Africa
Image: UN

India and China – already densely populated countries – are expected to add 404 million and 292 million urban dwellers respectively. Nigeria is projected to add 212 million.

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What are the reasons for urbanization?

Urbanization is linked with socio-economic growth and development; commerce, government and politics all play a part in the rise of urbanization, as do social transformations in health (longer life expectancy, lower fertility, ageing populations).

‘Urban living is often associated with higher levels of literacy and education, better health, greater access to social services, and enhanced opportunities for cultural and political participation’ explains the report.

And what about the challenges?

In 1990 there were just ten ‘megacities’ (that’s cities of over 10 million). In 25 years that figure rose to 28 megacities, accounting for 12% of the world’s urban inhabitants. This growth presents challenges. Ensuring there is sufficient transport, sanitation, education, health care, housing and utilities are major obstacles.

Citing the Rio +20 Conference, the report explains how it’s recognised that ‘cities can lead the way towards economically, socially and environmentally sustainable societies’ but to do so requires investment and planning to improve the living standards of both urban and rural inhabitants.

However, not all cities are experiencing such growth – in fact, some are in population decline. Typically, the reason for this is low-fertility. The country with the biggest population decline is Riga, Latvia, with a projected decline of 11.5 per cent by 2025.

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Cities and UrbanizationFuture of the Environment
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