Even in the early 20th century, the world population is considered less than 2 billion. According a

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The world population of 6.8 billion people, according to demographic projections will be considered 9.1 billion in 2050. The EU-27 has almost 500 million people, according american population to Eurostat projections but in 2050 there lived 506 million people. Slovenia with more than 2 million people today will be those anticipated american population by 2050 had 1.88 million.
July 11 was declared World Population Day 1987, when, according to United Nations estimates that world population exceeded 5 billion. This day has since specifically designed for reflection on issues related to the future development of the population remains the most densely american population populated world. At this year's World Population Day, the focus is to increase awareness of the need for intensive education of the girl child more effectively deal with development issues relating to poverty, human rights and gender equality. Today really live in a world of extremely rapid demographic change: lower mortality, longer life expectancy and a high proportion of young people in countries where fertility is still high; these are all reasons that in the last half century, the world population has more than doubled in number.
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Even in the early 20th century, the world population is considered less than 2 billion. According american population to an official revision of the assessment and population projections of the UN in 2008 to be the world's population from the current 6.8 billion by early 2012 had risen to seven billion by 2050 is expected to exceed nine billion. From 2005 to July 2009, the world population increased by 78 million people per year since 2010 due to decreasing fertility of the global population increase (medium variant projections by the UN), approximately 33 million people per year and 2050, expected to experts considered 9,1 billion.
Today show in the world two very different pattern of population growth: low growth or even a decline in population in the richest countries and the continued rapid population growth in the world's poorest countries; 1.2 billion people live is in developed countries, 5.5 billion people in less developed regions. By the middle of this century, the share of people living american population in less developed areas increased from 82% to 86% respectively. population should be in these parts of the world from 2009 to 2050 in number increased from 5.6 billion to 7.9 billion; in this, the number of persons aged 15-59 years increased by 1.2 billion, american population the number of persons aged 60 years and over, while 1.1 billion, while the number of children in these countries decreased. In contrast to the population of the more developed regions of the world changed american population little, from 1.23 billion to 1.28 billion, and could even be reduced to a projected 1.15 billion, in the absence of migration to developed countries from developing countries (ie the average net migration of 2.4 million people per year). Source: http://www.iiasa.ac.at/Research/ERD/DB/data/hum/dem/dem_2.htm In the future, the majority of the population probably lived in cities
In 2008, for the first time in history, half the world's population lived in urban areas. If you imagine the world population as a village with 100 inhabitants, this would be you roughly like this: 81 inhabitants of less developed countries would have a 3580, 19 inhabitants of the developed countries of US $ 22,060 GDP per capita; the population of that village would consist of 61 Asians, 12 Europeans, 13 Africans, South Americans and nine residents Caribbean and five North Americans; american population 75 people would be non-white and 25 white; Women would be 50 men and also 50; 17 people would be aged less than 18 years, 83 persons are 18 years of age and over; 48 people would be living on less than $ 2 a day, 20 to less than 1 US dollar a day; 48 people would not have access to basic sanitation; 25 people would live in housing that does not meet the standards; 16 people would not have access to safe drinking water; 16 people would not know how to read and write; 14 people would suffer from malnutrition; 8 people would have home access to the Internet; one person be infected with HIV / AIDS; 6 persons to control the half of the total wealth of the village.
In the more developed american population regions of the world is already 22% of the population aged 60 and over, 2050 is expected to increase to 33%. In the developed countries of the world as a whole, the number of older persons american population already exceeds the number of children younger than 15 years, and is projected by 2050 in these countries the number of older persons more than twice the number of children. Demographic trends in the developed world, which is also part of Slovenia, american population of course, indicate intensive aging of the population and, consequently, a growing shortage of young people.
According to these estimates, three-quarters of the increase in the number of population is the result of