Human Population

Topics: Population growth, World population, Overpopulation Pages: 5 (1475 words) Published: September 30, 2012
Human Population

Human Population

As we look around us, we can actually see how things are becoming over crowded. Lines at the store, driving on the highways and how schools classrooms are getting bigger. This is all due to the human population intensifying. We add about a million and half people to our world population every week! What effects is this having on our environment? Is it hurting our water systems and changing our climates? What can we do as a society to help or change what is happening to our precious planet? Today, I am going to discuss the problems that our planet is having due to overpopulation. When talking about the impact of human population some of the hot topics deal with the carrying capacity, environmental issues and our quality of life as a whole. All three of these areas are intertwined with one another and deal directly with the human population. Our planet is facing serious dangers as the population increases in size.

It is in our nature to adapt and overcome. When it comes to our population the environment can only take so much. "The principle factors affecting climate change are the growth of human population and consumption" (Rosa, E. 2007). Human interactions with the environment deal directly on how our planet endures the "carrying capacity". Carrying capacity refers to the maximum size of the population of a given species that can be supported in a given environment on a long-term basis" (Cunningham, Cunningham and Saigo, 2005). Since the environment can change rapidly, the carrying capacity has the same change mechanisms as well. Our population is connected to both natural and social aspects. When deciding when a region is overpopulated, it is not land area that is measured but the carrying capacity. As I was doing my research, I found that very interesting that different areas determine how the population is measured. It can be altered by improved technology, but usually it is changed for the worse by pressures which accompany a population increase. As the environment is degraded, carrying capacity actually shrinks, leaving the environment no longer able to support itself. No population can live beyond the environment's carrying capacity for very long period of time (Engleman, R. 2011).

Now that we understand how the planet deals with the carrying capacity, we need to take a look at how the environment impacts our earth. Food production and water resources are two important areas that need to be addressed. "Human food production capabilities are impressive" (Bacon, D. 2007). A good point though, is that most of the food produced does not go directly to the mouths of humans. Much of the food produced (i.e. grains) are for livestock. Production is not the challenge, it is the environmental impacts of producing the goods. Much of the soil that we use is considered "poor soil" (Bacon, D. 2007). As more people are added to the planet, it will ultimately hurt our farmlands. When there are not enough farmlands available, this will hurt food production and that will spiral down to our overall consumption. One of our other big resources is water. The total water supply on our Earth remains constant but most of it exists from the oceans. Currently, China, India, Africa and the Middle East are facing severe crisis due to lack of fresh water. As the increase of population continues, the United States will face shortages as well. There are ways to desalinate water, but it is very expensive. Currently, Tampa Bay is the first American city to desalinate water. When working with this process, there are other issues that have to be looked at as well. Other resources are needed for this process. Water is a necessity for our daily survival. We not only need it for ourselves but for agriculture, industry and recreation (Bacon, D. 2007). As our world increases with people, it will affect our water in a matter that cannot be overlooked.

As population size increases, it...

References: Bacon, D. (2007). About World Population Balance. Retrieved from
Birdsall, N., A.C. Kelley, S. Sinding (eds). Population Matters: Demographic Change, Economic Growth, and Poverty in the Developing World. Oxford University Press, 2003.
Cunningham, W., Cunningham, M., and Saigo, B. (2005). Environmental science: a global concern. Boston: McGraw Hill.
Davis, J. (2006). Human Population and Ecology. Retrieved from
Eldridge, N. (2005). Overpopulation and Extinction. Retrieved from
Engleman, R. (2011). What a Population of 7 billion People Means for the Planet
Hart, J. (2008). Treading on a Taboo. Retrieved from
Mosquin, T
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