There are many kinds of environment: the physical environment often thought of as nature, psychological environments built out of human interactions, and political environments rife with manipulation and posturing. While there are some obvious effects that large human populations would have on the natural environment, there are also less evident psychological and political ramifications. Thus, overpopulation is today's most pressing environmental issue. Acclaimed hermit Henry David Thoreau once wrote that humans have plenty of space. “Our horizon is never quite at our elbows” (Thoreau, 49). But is this really true? The U.S. Census Bureau's international population clock estimates the global population at slightly over 8.6 billion …show more content…
It stands to reason that the planet we live on has a finite limit of resources: water, air, and land. More people mean more industry, which means an increase in the resources we consume and the more emissions we produce. There is also evidence to support theories regarding human contribution to global warming and climate change. As the population grows, cities are constructed along rivers and other waterways, and the sources are modified to meet urban needs rather than ecological. More and more food needs to be grown to nourish people. Now, land is degrading and sea levels are rising, making growing impossible in many former farming areas. Because of this, "... 800 million people are chronically malnourished, and 2 billion lack food security" (Dahl, 603). Because agriculture for the masses depends heavily on irrigation, it puts additional strain on the globe's water tables (Dahl, 602). Not to mention that current water sources are being polluted by sewer discharge and industrial waste. Deforestation is another issue. Forests and other natural vegetation help protect against flooding and soil erosion. In the 1990s, 563,709 square miles of land were cleared of forests (Dahl, 602). Without these forests, global warming has been accelerated as more carbon is released into the atmosphere, rather than being consumed as fuel by plants and released as oxygen. For example, in India and Sri Lanka, a tsunami, unhindered by the mangroves that used to grow there, destroyed
In recent years, Earth’s issues have become increasingly politicized, publicized, and economically important. When you examine how the environment affects us and how we affect it, it’s easy to see that overpopulation is one of earths most pressing environmental issues.
For many years it has been thought that the maximum human population would be determined by the amount of drinkable fresh water. Earth can only hold, manage, and support so many people. This is called carrying capacity. If we go over this carrying capacity it could cause worldwide issues with the environment along with many other issues. For example if the human population goes over the carrying capacity of the earth then problems like lack of clean drinkable water, lack of land that humans could live on or occupy, and lack of available jobs could become much more serious and have terrible effects on the system which everything works.
Overpopulation, pollution, global warming, climate change, genetic modification, ocean acidification, water/soil pollution, deforestation, acid rain, and ozone depletion are among some of the main factors that have a negative impact on the planet. Overpopulation is one the most concerning environmental issues currently. Overpopulation is defined as the human population of a specific area exceeding the carrying capacity. Overpopulation can occur from an increase in births mainly or a decline in deaths. Also, other factors that affect overpopulation can be an increase in immigration or a depletion of resources. It was stated by the United Nations that the worth has a total carrying capacity of somewhere between 4 and 16 billion. Currently we hold over 7 billion humans on Earth. As of 2017 the UN has increased their population predictions to 9.8 billion by 2050 and up to 15 billion by 2100. Pollution we hear about every day.
Dr. Forsyth implements plenty of evidence as well as proven statistics to back up his outlook on these issues. The growth of human population is happening at an exponential rate, implying that in a short period of time population growth will double. “We find it difficult to comprehend exponential growth, but it may prove to be our fatal blind spot” [3]. When analysing the world’s population over a long period of time, it took roughly 19,000 years for the world’s population to go from 5million people to 500 million people in 1500 A.D. [4] With an estimated population of 7.5 billion people [5], for a period less than 1000 years, population increased more than 1500 times its size than it was in the 1500’s. In addition, on a more minute scale of time, in 1950 the world’s population was roughly 2.5 billion people [6] in merely 50 years the world’s population has tripled. With these statics, it is evident that the world’s population is increasing at an incomprehensive rate. With populations at their peak, overconsumption is another problem this world faces, as Dr. Forsyth affirms “humans consume far more than their fair share of the Earth’s natural productivity.”[7] Due to this over consumption of resources, there is a vast demand for cheap food which results in the clear cutting of large forest to generate room for new plantations of food. When doing so, humans destroy habitats that
No matter how many people do claim overpopulation is not a relevant issue, it very much is because of the simple fact that starvation and pollution are very real and existing issues that are ultimately offset by overpopulation. In an article titled “Overpopulation Is Not the Problem,” author Erle C. Ellis uses the analogy “Like bacteria in a petri dish, our exploding numbers are reaching the limits of a finite planet, with dire consequences,” to argue that overpopulation is not a problem by stating the opposing claim. “We are nothing like bacteria in a petri dish,” Mr. Ellis solemnly asserts, “...these claims demonstrate a profound misunderstanding of the ecology of human systems. The conditions that sustain humanity are not natural and never have been. Since prehistory, human populations have used technologies and engineered ecosystems to sustain
The article by Dennis Dimick brings up some very good points about the increasing population. He states that with our current population of 7 billion people, we currently do not have enough food to eat. With the population increasing day-by-day, we will face more shortage in the future. He also brings up the issue of natural resources. We are currently using so much natural resources that we will run out very soon. The use of natural resources tend to increase with increase in social standing (wealth).
Impacts on the Environment website). Our population is rising beyond the earth's ability to maintain a reasonable quality of life. This enlarged population has also increased the land uses, resource uses and pollution problems. A raise in land use
Overpopulation can damage or even destroy the environment. The need for resources will grow with the population, but natural resources will not be produced at a fast enough pace. Man may try to produce the resources they need themselves but will there be enough space? According to Young the average person needs a minimum of 100 square feet to feel comfortable in a living space (“How Much Space Do You Really Need?”). Using the estimated population size of 2050, human living space will take up 43.8 billion square feet. Assuming most of these people live in apartment buildings so there is room for farming. Farms will need to switch out crops every year to slow down the process of soil degradation.
The more the earth population grows the more resources that are required such as natural resources. The more the human population expands, the less that animals will have places to inhabit that are truly wild. “Growing human populations have led to increased demand for natural resources, and with a current world population of more than seven billion people, our demands, many of which require environmentally damaging practices to fulfill, will continue to grow” (NPR).
This article is about the U.S. overpopulation and its effects on the environment. Our population grows by 285 people per hour. With this increase of 2,500,000 people per year our renewable resources are limited. The need for urbanization is depleting the land needed for growing food and the U.S. consumption of energy is continually rising. As a result, the population growth will contribute to more pollution, overcrowding, loss of open land, and the death of many species. Some of our much needed lakes and rivers are slowly evaporating, which means a limited supply of water for our nation.
Within the early history of the human race, the earth was titanic and appeared boundless. Its resources seemed limitless. Then as the humans traveled away from home, the world got smaller and most of the world was recorded onto maps. Soon, the numbers of people were growing and the world and its natural resources looked as if it was shrinking. The overpopulation of an creature is dangerous to any environment, but with humans its deadly for the whole world.
Our vast environment that once enjoyed fresh air and clean water have suddenly become global garbage cans. For most of Earth's recent history, “the atmosphere has contained about 275 parts per million of carbon dioxide, [but] today, we are at 400 ppm and climbing” (Database). At this level, climate change is unavoidable, turning coasts into flood zones and farmlands into deserts. Also, much of the CO2s are absorbed by the oceans, threatening the marine food chain on which all humans depend on. “An average American emits 17 tons of climate-changing carbon dioxide every year,” and leaves a greater carbon footprint than any other countries around the globe (Database). In addition to fossil fuels, we are now exhausting other natural resources and desecrating the environment trying to extract them in order to provide for the massive number of people. Human population will only continue to increase without a procedure, and eventually we will run out of resources to thrive.
Overpopulation: when the number of existing humans exceeds the Earth 's carrying capacity resulting in resource depletion, poverty, lack in biodiversity, global warming, starvation, unemployment, the spread of disease, water contamination, desertification, CO2 emissions, climate change, and rising conflict between territories among many others. Although unrealized by most, these issues, as a result of overpopulation, are a major problem facing the world today due to the recent substantial increases in global population over the past century (Gavenus). Our planet is beginning to run out of available resources for the world 's more than 7 billion inhabitants. Overpopulation is causing both our renewable and nonrenewable resources such as
In 1804 for the first time in the history of humanity more than one billion people were living on Earth. Then in 1927, 123 years later, the Earth's population surpassed two billion. Another billion was added by 1960, another in 1974, and another-bringing the total to over five billion-in 1987. Estimates are that the Earth's population will surpass six billion in 1999 and reach nine billion people in the year 2054-250 years after first reaching one billion.[1] Traditionally the historically slow increase in population has been attributed to limits on agriculture. Modern analysis of population growth, however, indicates that the primary restriction has been disease. The
The growing concerns of population are not limited to environmental degradation such as losses of biodiversity, soil depletion, and toxic rivers and oceans. It goes further through the risks it imposes of “epidemics, resource war, terrorism, and deaths from violent climatic events” (Ehrlich and Ehrlich 2012). Malthus argued that, people growth respond to wage or income that correlate negatively with the size of population (Lee 2011). On the other hand, climate change correlates positively with increase population. The pollutants such as greenhouse gas emissions from industry, transportation, agricultural activities, deforestation, and desertification are all associated with massive population growth. Thus, overpopulation is major