As the world sees the biggest wave of urban growth in history – with almost 70% of its population expected to be living in urban areas by 2050, up from 56% today – the task of making cities greener and safer is becoming more urgent.
From space shortages to worsening climate change, cities are being forced to adapt at a pace never experienced before.
How far can they push their limits, and make sure they leave no one behind?
Read our full investigation here.
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