World Cities Day demands action in Australia, say UTS reseatchers
On top of climate change, cities are under constant pressure from the growth in the world’s population. Some 4.2 billion people, or 55% of the global population of 7.6 billion, already reside in cities. The Population Division of the UN Department of Economic and Social Affairs estimates that another 2.5 billion people could move to cities by 2050, putting urbanisation at 68%.