Joan Clos, one-time doctor and former mayor of Barcelona, is hoping to encourage politicians to see cities not as problems but as opportunities for lifting entire populations from poverty.
“Urbanisation is not a passive outcome of development but a creator of value . . . [it] is like a money-printing machine,” says Dr Clos, executive director of UN-Habitat, which studies human settlements.
The organisation has been looking at how to cater for the urban population explosion. “From now until 2050 we’re going to double the current level of urbanisation. Another 3bn people will be living in cities,” says Dr Clos.
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