Nowadays cities are becoming overcrowded. What are the causes of this? What effects can be seen as a result of this?

The fact that the world’s cities are becoming more and more crowded is well-known. Cities such as Tokyo, São Paulo, Mumbai, and Shanghai are now considered ‘megacities’ because of their enormous size and huge populations. There are two main reasons why these and other cities are becoming so crowded: one economic, the other socio-cultural. First, […]