Today, there are officially 8 billion people in the world. Growing from one billion to two billion took 125 years. Barely 70 years ago, in 1952, there have been 2.5 billion people living in the world. We've grown from 7 to 8 billion in the previous 12 years, so another billion won't be far behind. The globe's overpopulation poses serious difficulties for achieving sustainable growth, particularly in the areas of resource management including dealing with inequities as well as inequities. To put it simply, human overpopulation occurs when a certain area's human population grows beyond the capacity of its surroundings or available resources to support it. Commonly addressed in terms of global populations, the concept might even apply to specific countries, districts, or even municipalities. Current forecasts by the United Nations put the world population at 9.7 billion in 2050 or 10.4 billion in 2100 [assuming] a drop in population for regions whose big households are most common.