Global Population And Climate Change

In October 2011, the United Nations announced that the world's population had reached 7 billion. By the year 2050, the UN predicts that the population will increase to about 9.6 billion. Our rapidly growing population has many concerned about whether or not the Earth can sustain more than 7 billion people. Many people are worried about what the human carrying capacity is and what will happen if we exceed that. Others believe that we will continue to be able to support population growth through innovations in technology. Erle C. Ellis, a professor of geography and environmental studies, holds this belief and presents it in his article "Overpopulation Is Not the Problem".

Climate change is one of the most crucial issues in the twentieth century. There is much evidence to show fluctuations in weather occurring on the earth. Scientists found that the period of global warming is occurring more frequently than the previous time and rapidly increasing temperature globally. The statistic records on the nineteenth century, calculated that the surface of earth throughout the 100 years ago that had average increase of approximately 0.8C. However, during the period thirteen years ago, the average temperature increase around 0.6C and continually warming with an upward trend in the shortest period. These events cause drastic changes which affect human life such as extreme weather (hotter and colder), food and fresh water shortages and higher levels of the ocean. It is important for people to being concern what happens now. This essay will focus on the main cause of anthropogenic changing climate, in order to evaluate and link the outcome of activity.

In the past 100 years, the population of the world has gone from about 2 million people to just over 7 million people. With this drastic change in population in such a short period of time compared to the total age of the earth, problems are no doubtable going to arise. From the demand of the ever rising human population on the earth, food accessibility, depletion of natural resources, and an increase in global warming affects all have detrimental consequences on our human population and our own earth that may not be reservable. As humans need space to live, and as cities expand, farm land is being taken over by subdivisions. Thus, where is the food coming from to feed all these people with less farmland? With the first world lifestyle a dream for the majority of the population in the world, it is a wistful lifestyle that is very depended on the natural resources our earth has to offer such as fresh water, natural gas, and petrol. Once these resources are gone, they are gone. And as humans abuse the land that we live on, negative effect such as smog, rising oceans, and stronger super storms have a negative impact on humans and on the ecosystem of the earth swell. With these attributes that come with an increase in population, without a sustainable solution, the health and safety of the human population as a whole, as well as the earth, all suffers dramatically. Data from worldometers.info shows a 2.3 times from crease of births this year compared to deaths. With all these

The 21st century, when calculated in terms of Earth’s lifetime, amounts to approximately a quarter of a second. Our sun is estimated to have existed for four billion years and calculations suggest it will exist for another six billion years. With more than half of Earth’s life remaining, somehow humanity has managed to create an unprecedented spike in climate change in this tiny sliver of the earth’s lifetime, by human induced alterations occupying less than a millionth of the elapsed time on Earth. The accelerating rate at which our planet’s finite resources are being depleted is in essence due to our energy dependency and exponential population growth. The exploitation of energy brought by the industrial revolution, and the exponential

Climate change is not a new phenomenon. It has been a common occurrence throughout our planets history. According to noa.gov there has been at least seven cycles of glacial advance and retreat that occurred in the past 650,000 years with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era and of human civilization. These early patterns of extended climate change were most likely the result of “very small variations in Earth’s orbit that change the amount of solar energy our planet receives.” (noaa.org). While these orbital variances can account for a portion of our changing climate the majority of the blame for our climates current state falls on our shoulders. According to the latest ICCP report, the current warming trend is of particular significance because most of it is very likely human-induced and proceeding at a rate that is unprecedented in the past 1,300 years. It is the consensus of the scientific community that the daily activities of the Human population have significant influence over the acceleration of climate change. Rising temperature trends, rapid acceleration of co2 levels and the increase of extreme weather events offer unequivocal Proof of just how significant our influence can be.

“In the absence of concerted action by the world’s governments, anthropogenic greenhouse gas emissions will cause global temperatures to increase between 3 and 8 degrees Fahrenheit over the next century” (Ranson 2). Gradually, this rise in temperature causes changing precipitation patterns, rising sea levels, and a decrease in snow cover that enables a broad range of climatic shifts to take place. Considering such sudden environmental decay, there is a very limited time frame to gather scientific data that shape public and foreign policy. Therefore,

Once, when the world was changing and new lands were being explored and conquered, the opinion of the masses was “Growth is good.” There was no worry about the lives being harmed or how large our impact was, or even of the future repercussions our actions might have. However, this once-carefree opinion has twisted and mutated and created a monster: human population growth. It’s big. It’s fast. And there’s almost no way to stop it, with our current rate of increase. The consequences of our forefather’s actions, carried out so long ago and not given so much as a backwards glance, are now coming back to haunt us, and they fight dirty. This growing beast is pressing an ever-increasing strain upon our Earth’s resources, and it seems like there is nothing we can do to prevent present and future degradation. Luckily, the solution to this expanding issue is sustainability. Scientists and researchers across the globe are working to design effective new ways to keep our way of life without fanning the flames of global change. The bottom line is, the quicker we get started on reducing and reversing global climate alteration, the better off everyone will be.

Advancements in science such as medications and vaccines have caused birth rates to surpass mortality rates resulting in overpopulation. According to Population Paradox, an academic article by Mairi Macleod, an evolutionary biologist,“It took until 1800 for our numbers to reach 1 billion. Now the human population exceeds 7 billion and is set to reach 10 billion by 2085” (Macleod). Overpopulation is having detrimental effects on the planet 's ecosystems, which was discussed in the provided stimulus, The Struggle To Govern The Commons by Thomas Dietz. It stated that “In the absence of effective governance...the environment is in peril from increasing human population, consumption, and deployment of advanced technologies…” (Dietz). After

Migration is the movement of something from one place to another. In terms of demography, migration is the movement of people. Many people migrate for many different reasons but these reasons can be branched into two different categories, voluntary and involuntary. Voluntary reasons include; employment, life course transitions, climate, health, family, etc. (Casper, 2016). On the other hand, involuntary reasons consist of situations when migrating to a new country is essential to survive. These include; wars, natural disasters, political upheavals, prison, urban renewal, etc. It is vital that countries keep track of migration to observe their current population and react accordingly. Also, it is important information so countries can recognize potential problems such as, how much of certain resources and services are needed, if they require more health care services, if they are over populated in certain areas, and other data that would add to their continued understanding of their country’s needs. Another cause for knowing the number of migrants of a country is for the necessary knowledge of whether there will be basic change, cultural diffusion, social integration, moral dilemmas within a community, etc. (Casper, 2016). Some wouldn’t think these observations aren’t significant or obtainable by looking at the migration of people. However, this is in fact paramount to grasping the current social situation and social issues within a

Scientists agree that the world is heating up. Over the past century, the Earth, on average, has seen a 1.5oF increase in temperature, and is expecting a similar increase, if not a larger one, in the next century. This has resulted in rainfall changes, floods, droughts, and heat waves. In addition, we have seen oceans rise, become warmer and more acidic, and we have seen ice caps melt. Humans contribute largely to climate change, but does that mean that we can prevent it? Steven E. Koonin, New York Times columnist and theoretical physicist, makes the point that even by trying to reduce the emissions that we put into the atmosphere, we would be “delaying the projected doubling of the concentration by only ten years.” Facts like this suggest that prevention is not the answer, but that adaptation is the way to go. We should adapt to climate change because it will make us better off in the future and more people would be willing to get involved.

Migration is important in studying demography because it is one of the three primary demographic components that influence population size, composition, and distribution changes. Although it is births and deaths that mainly impact population changes because they are the major demographic events, migration is an important auxiliary event that also needs to be taken into consideration in order to accurately determine population changes, especially in today’s modern world where international relocation is so prevalent. Also, migration has important social, political, health, environment, and many other consequences that affect both accepting and sending countries. Therefore, it must be studied and used to control and manage these outcomes in the most optimal ways.

The environmental security is one of the biggest concerns for human society in these days as stability and natural resources preservation have become essential elements of international relations and domestic security. By looking to the current situation of global environmental security, it seems that the rate of destruction to the world’s environment by humans is increasing and the damage is faster than it can be recovered (Fiona Harvey, 2016). There are many factors which play a fundamental role in destroying the global environment. The most visible one is the human’s incorrect activity that resulted in climate change which can be viewed as an enormous threat to environmental security. It is believed that the current local and global climatic changes have been impacted by the increase of greenhouse gases emissions which may effect on reducing the food and water as they are the main elements for environmental and human security. This paper gives an outline of the theory and practice of global climate change and a brief history of the international negotiations on the issue done by United Nations and argues how successful they have been. Then it reviews the impact of climate change on Australia’s environment and explains its national polices and international commitments, as well as the role of both USA and China, the largest contributors in emitting carbon dioxide into the atmosphere, in reducing the greenhouse gas emissions. At the end it explains the way in which

The rate of global population growth has declined significantly from its 1970s highs (see Figure 2). Current estimates anticipate a continued decline to about 0.5 percent in 2050. This corresponds to a doubling time of 140 years, a rate that has fostered concern about how the world will cope with 18 billion people in 2190.

Did you know: There are also different types of migration. “Economic migration” is when people are migrating to a country that has a higher percent rate of getting a job. “Social migration” is when you are migrating to start a new life or to live closer to your family. “Political migration” is when people are moving to escape corrupted government or civil war. “Environmental migration” is when natural disasters destroy homes and people try to start a new life in a new country.

Migration is the geographic movement of people across a specified boundary for the purpose of establishing a new permanent or semi-permanent residence. Along with fertility and mortality, migration is a component of the population change. These migrants comprise of the particular group of people who are landless labourers, seasonally unemployed labourers, agricultural labourers, poor farmers and the people who belong to a socially back ward classes. Migration has been a major source of human survival, adaptation, and growth across the centuries and millennia. Data reveals that internal migration is four times higher than international migration. And when it comes to internal