According to UN forecasts, to October 31, 2011 the world population will reach 7 billion people. It is hard to imagine that 200 years ago there were only 1 billion and in the next 150 years, this figure reached 3 billion. Over the last 50 years the world population has more than doubled and is expected to reach 15 billion. In 2100. Population growth provide only poor countries, in developed countries, fertility gradually decreases, as well as the population of "white people" (eng. White people). Such rapid population growth threatens global shortage of resources - recent years, food prices are rising continuously.
According to UN forecasts, in the coming years the population will increase by 78 million people annually. This family is the head of a religious sect called "Khan", which allows polygamy, the Indian state of Mizoram, 7 October 2011. He has 39 wives, 94 children and 33 grandchildren.
Currently, the population growth is accompanied by another process - the increasing role of cities. The following 2 billion will be born and will live in cities. British Columbia, Canada, September 24, 2011.
The rapid population growth began in the 60s of the 20th century. While in developed countries the birth rate is falling, in poor regions of Asia and Africa continued to grow in size, no matter what war, epidemics and food shortages. Photo densely populated area in West Delhi, India, a satellite view.
In 2010-2050 years half the world's population growth will provide a total of 9 countries, including India, Pakistan, Nigeria, the Democratic Republic of Congo, Tanzania and Bangladesh. However, this "nine" will include the US and China. World-famous concrete jungle "satellite city" Hong Kong - Po Lam, September 14, 2011. In this southern city are about 25% of all the faceless concrete high-rise apartment buildings in the world.