Year 9 Geography Task 1

2,000 years ago the world, in terms of population, was only the size of the United States of America, 300 million people. Today, the world’s population is at seven billion and counting. If the population rose at a steady rate from year 0, we would’ve reached 1 billion people by about 210 A.D. This, however, was not the case. We reached 1 billion people in 1800 A.D, which means that there had to be very odd growth periods for the population as a whole REWORD ME. From 0 to 1000 A.D. the population only rose about 10 million people, “and well into the second millennium, [the population] grew less than 0.1 percent each year” [1]. However, from the year 1800, with 1 billion people worldwide, to 1930, the world gained another billion people. We then reached three billion people in 1960, five billion in 1987, and 7 billion in 2013. One can clearly see that once we entered the 19th century, the world’s population started growing like a 14 year old boy going through puberty; rapidly, and without any warning. One thing that can explain this growth is called the Demographic Transition.The Demographic Transition is a theory that explains the growth.

C.A country likely constitutes a formal political region because within its boundaries certain conditions of nationality, law, and political tradition prevail.

According to the lecture, “If the birth rate is higher than the death rate, then population growth will be exponential.” What sets us apart from history is the fact that our death rate has greatly decreased due to our ability to fight leading causes of death. In historic times, the average projected age of survival was far lower than it is now due to the lack of knowledge on how to deal with and prevent different diseases. As time passed, humans began to learn more about medicine and treating sicknesses, but this was a slow and steady process. Plagues like the Black Plague during the 1300s killed off millions of people in Eurasia, preventing the population from growing exponentially. Couple with war and crime that was at its peak during the 1940s, the population did not have room to grow up. But as time continued, the rate of war and crime decreased, leading to one less reason of death to worry about. Famine was also a huge cause of death during 1870 but begins to decrease in 2010. The combination of the decrease in causes of death that stems from the better technology to deal with diseases, less wide-scale wars, less famine, and the continuous birth of new live caused the population to seem rapidly grow from around the 1950s onwards (this makes sense as it was right around the end of WWII, the last major war to affect the entire world). The migration of people and intermixing

Population around the world is rising hastily, so fast that the world’s population has just reached

(n.d.). So many things go into human population growth such as deaths, births, and migration; for, all three play a factor when calculating the growth. The more people that live in the area, can affect more on the environment then anything. “For the last 50 years, world population multiplied more rapidly than ever before, and more rapidly than it is projected to grow in the future.” Jordan, J. (n.d.). Human population growth affects things that go un noticed such as in the workforce, environment, and our

In this day and age, our world is being consumed by the rapid growth of the world’s population. From the beginnings of time with cave men thousands of years ago up until the Industrial Revolution, the number of people living on this planet never passed a billion, and was always growing at a slow pace. When the Industrial Revolution hit the population skyrocketed to over 7 billion people. The growth of population has not slowed down since then, and more technological advances are popping up everyday to help balance the rapid growth. The amount of people in the world is literally growing each and every day. As the population grows we put more demands on our planet to provide for the billions and billions of people inhabiting it. The world

The world population is growing every year and is predicted to double in the next

Economically there are two approaches to the debate on how much the human population can grow. One debate is the natural science approach which is adopted by biologists, chemists and physicists. The natural science approach stands by the fundamental idea that earths capacity to supply is fixed and human population is constrained by physical limits and of scarce natural resources. They state that human biological requirements don’t change. For example; everyone on the planet today needs 2000-2500 calories per day to be healthy, this is the same amount of calories our ancestors would have needed 1000 years ago, however, the earth is now vastly more populated than 1000 years ago, consequentially, there will come a time when there

From the beginning of time until 1850, the world population had been steadily growing until it finally reached the point of one billion people. Hurray for our species, we are successful and have been able to make adaptations in order to survive! Then, only 80 years later, the world population doubled to a whopping 2 billion citizens. After that, the doubling time was sliced once again. By 1960, just thirty years later, three billion people called Earth "home." Seventeen year later, in 1977, the world population hit four billion people. In 1986, nine short years later, we reached a population of 5 billion inhabitants. Sometime in the next few years, we are looking at

World population has been increased significantly, while Earth resources are limited and food sources are in danger. In this regard scholars predicted that world’s population would be reached around 10 billion by 2050 and certainly food requirement would be increased more than 70% (Dyson, 2016).These statistical data imply that food sources are increased arithmetically, while population are enhanced geometrically, whereas there should be a balance between population and food supply (Brownell, 2008).To overcome food shortage, some attempts have been done around half century ago which led to green revolution. This paper, aims to have a look on this phenomenon, introduce it and assess pros and cons of it.

Thurn claims that most of our food production relies on an unsustainable production. His main concern is that we need to increase our food production while at the same time decrease the environmental impact (Thurn, 2015). In around 30 years, the population will increase up to 9.1 billion, therefore, food production must increase by 70%. The challenge is to counterpart the food demand from a larger population to its supply and to do so in ways that are environmentally and socially sustainable. As studies have shown, our food production is unsustainable as we cannot neutralise population growth. Expanding the farming land and utilising fertiliser to increase the output are both questionable methods. (Godfray, Charles, & et al. , 2010, S. 812)

The human population is increasing and so is the amount of food we consume; each year food consumption increases 0.5% per person and less than half of the global grain we produce, is directly consumed by humans, this is because the rest goes to feed farm animals. However, factory farms are using more than they can produce, considering the fact that animals are being fed 6 kg of plant protein and in return are only producing 1 kg of animal protein, this also means other people are getting less food.  With the human population increasing farmers must grow crops to meet the rising food demand. However, to increase the number of crops produced we need more farmland, which can lead to deforestation and animal habitats being cut down or burnt. So far 38% of the world is covered by farmland, and the area is still expanding. Each year, 12 million hectares of land is lost to deforestation and it is predicted in 2050 more than 120 million hectares of natural habitat in developing countries will be covered in farmland, to meet the food demand. When deforestation is done to create new agricultural land, the crops that replace the trees also act as a carbon sink, but they are not as effective as forests.

Human overpopulation occurs when the number of people in a group exceeds the carrying capacity of the region that they occupy. This can be the result of an increase in births, decline in infant mortality rates, increasing immigration or depletion of resources. The human population has been growing since the end of the Black Death, but the most significant increase has been in the last 80 years and it is mainly due to medical advancements. Currently as of November the 11th 2014, the human population is estimated at around “7.27 billion people” [1]. Scientists have estimated that

There are plenty of reasons that our minds can come up with as to how human population can spiral out of control, including religion and culture; but according to Paul and Anne Ehrlich co-authors of Population Resources Environment: Issues in Human Ecology one of the main reasons for the spike in human population over the last century is the rise in birth rate and a sharp decline in the death rate, due to "cultural advances" (9). The global crude birth rate from 2005-2010 is 20.3 children per 1000 people. Ehrlich put together a chart detailing the estimated population history since 8000 B.C. According to the chart the estimated human population in 1930 A.D. was 2 billion people, by 1975 "a mere 45 years later" the estimated population was more than double that at around 4 billion people (6).

If you were to take a standard sheet of writing paper .1mm thick and cut it into two sheets, placing one atop the other, it would then be .2mm thick. Then, cutting the stack of two and making a stack of 4 sheets, it would then be .4mm thick. Believe it or not, if you continued to do this just one hundred times, doubling the size of the stack each time, the thickness of the stack would be 1.334 x 1012 light-years. This is an example of exponential or geometric growth, where the rate of growth is always proportional to it's present size.