Primarily, the outcomes population explosion in urban areas has produced are worth mentioning. With increased population density, demand for land, food, and clean water has surged, putting up property and rent prices. This, in turn, has placed a heavy financial burden on people and caused them to work in multiple jobs, or overtime, feeling stressed and failing to enjoy work-life balance. Apart from engendering such personal and social problems, over-population has exacerbated environmental degradation. More specifically, governments have been wiping out forests and other wildlands for construction to meet increased housing demands, and agriculture to provide ever-growing populations with enough nutrition. Although these activities are largely benefiting the humanity as a whole, they cause habitat destruction and animal extinction, thus threatening biodiversity and natural ecosystems.