Megacities are major global risk areas. Due to highest concentration of people and extreme dynamics, they are particularly prone to supply crises, social disorganization, political conflicts and natural disasters. Their vulnerability can be high.
This quote from the IGU’s MegaCity TaskForce draws a quite bleak picture of what some believe to be the future of living for humankind. The UN World Urbanisation Prospects finally saw the urban populations surpassing rural living for the first time in human history in recent years, but we must not forget that these urban populations do not all live in what is referred to as a megacity.