Thus, at the beginning of our era, the world population would be around 250 million inhabitants. At the end of the first millennium of our era, it was estimated at about 300 million people. It is not until the early nineteenth century that the world population reaches 1 billion (around 1800). From the early nineteenth century, the industrial revolution era in Europe, the population (demographic) growth speeds(speeded) up. In the early twentieth century, in 1900, the world population is estimated at 1.613 billion people.This is already a significant (increase, burst) speed of population growth.
In the course of 55 years, Germany’s population has increased from 73.3 million in 1960 to 82.6 to the present day. It is predicted that by the next century, Germany’s population will drop to 56.9 million. Germany has an inconsistent amount of people in different age groups; more retired people than working age or children group. Hence, a multitudinous effect to the population, thus population change. Manifestly Germany’s population has evidently been decreasing right after the country has reached their highest peak; 82.5 million in 2006.
The amount of people that migrated to the United States of America is mind blowing. “The U.S. immigrant population stood at more than 43.3 million, or 13.5 percent, of the total U.S. population of 321.4 million in 2015, according to American Community Survey (ACS) data. Between 2014 and 2015, the foreign-born population increased by 899,000, or 2.1 percent, a slower growth rate compared to 2.5 percent between 2013 and 2014.” (Zong et al). The amount of the people that migrated grew greatly in 2016. “According to the 2016 Current Population Survey (CPS), immigrants and their U.S.-born children now number approximately 84.3 million people, or 27 percent of the overall U.S. population.” (Zong et al).
In 1845, emigration was at the pre-famine rate of 50,000 per year. In 1846 100,000 left. It peaked in 1847, when 250,000 left. Over the next 5 years it averaged 200,000 per year, before the numbers fell off. By 1855, the rate was down to 70,000 per year.” (Abbot, Patrick).
In today’s perspective, California has 39.25 million people, so they would then have an additional 16.95 million added onto it. California would then have 56.2 million people. The population in California keeps on growing and growing until there is no more gold. “By August 1848, 4,000 gold miners were in the area, and within a year about 80,000 “forty-niners” (as the fortune seekers of 1849 were called) had arrived at the California Goldfields. By 1853 their numbers had grown to 250,000.
In the 21st century, population studies are very significant in looking at characteristics of a country, habitat, community and other environments. For example, in the human population, people are interested in a country’s population growth/decay, as the production of goods, social reforms/support or other needs of the people can be suggested. If a population is decreasing, there can be efforts made to improve medications and social support to increase the population and decrease the death rates. But do we actually know how population is modeled and how accurate these models are? This exploration aims at comparing logistic and exponential growth models, the two main models used for population growth, and to determine the extent of how realistic
The OECD (2011) has projected that growth rates for the urban population are expected to be four times higher than the rates for total population growth has been in recent years. However, Roux (2009) found that between 1996 and 2001 although black African migration streams were the largest, a far greater proportion of Whites migrated during the two periods (26%), followed by Coloured and Asians/Indians
The current global situation regarding the global population and food production is that there is in fact enough people to feed everyone but there is still 815 million people starving in the world. By 2050 people will have to produce 50 percent more food globally to feed everyone. World hunger is still affecting about 11% of the population globally. From 2015 to 2016 itself world hunger and undernourished people has increased by 777 million to 815 million in 2016. The two major school concerning population growth both have aspects that can be considered correct and incorrect.
Research in social science provides several of information that influences the society in a country. Besides, research in social science will help in understands the problems and how the problem occurs in the society. Instead of advance in technology, research in social science will solve many major problems in the world especially in social problems. According to Ruttan (1982 & 1984), he claimed that research in social science is very important because it encourage the changes in