Do you really know how many people live in the world? Too much people! Today this problem is called “Overpopulation” and it is a very serious global problem, with a lot of social, political and economic implications. The cosmologist Stephen Hawking predicted that overpopulation would be deadly to humans. He also calculated that the world’s population doubles every 40 years, with an increase in global warming and the inevitable extinction of all living beings and all living organisms. But what is “overpopulation”? If the number of people living in an area is greater than the resources available to support that population. Overpopulation means depletion of natural resources, increased levels of air and water pollution, lack of essential services, such as health care and education, inadequate sanification and finally, an increase in crime rate.
That’s why is necessary to control population growth. An important example is China which has the world’s biggest national population with 1.3 billion people. It’s important to understand which factors influence where people live. First of all, employment which makes it possible for many people to make a living; secondly, good communications and finally, reliable water supplies and natural resources. On the contrary, there area in the world which are underpopulated, just like Australia where there are empty areas where the resources are not being used fully. There are so many wide open spaces and so many few people in them! Many things should be done and governments should limit cities growth.