2050: Building better cities for an overcrowded world
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In 2050, there will be 10 billion people living on the planet – 75% of them in cities. How will we cope with this urban revolution? In this introduction to our Building Tomorrow series, three leading experts explore the most urgent problems we face – and how to solve them.

As the 21st Century unfolds, our sprawling cities are set to grow and grow even more. A recent UN report suggested that by 2050, three-quarters of humanity will live in our swelling cities.

The massive influx to our planet’s urban populations could create a whole host of problems – from overcrowding to air pollution, extra stress on natural resources and loss of habitats to grow more food.

How can our future cities cope with the added burden of increasing populations? Here, three experts taking part in BBC Future’s Building Tomorrow series talk about the challenges of tomorrow’s cities – and what we need to do to make them better places to live in.

For more in our Building Tomorrow series, click here. If you would like to comment on this article or anything else you have seen on Future, head over to our Facebook page or message us on Twitter.

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