Effects of Population Growth on Environment

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Effects of Population Growth on Environment

This is not the latest jackpot prize, but 6.5 billion is a very formidable number. It [It must refer to a specific word in the sentence or the reader can become confused.] is the population of the earth. The human population has been increasing at an accelerated rate in the last century; unfortunately, not much has been done to slow down this process. Undoubtedly overpopulation is a global issue. It [It must refer to a specific word in the sentence or the reader can become confused.] is global because it pertains to all humanity affects the whole world, i.e. the environment. Almost all human activities affect negatively the environment in one form or another, as human population will expand the damaging effects on the environment will multiply. Although some believe that population growth is under control, it is having a negative effect on the environment by depleting Earths clean natural resources and wildlife.

Some of the consequences of our rapid growth: With U.S. population growing by three million a year is the farming industry looses two acres of farmland every minute (Zarrella, 2004). The negative effect on the environment due to waste is more than just the end product [Word use: these two words are redundant (one is either the same as the other or contained in it); eliminate the first with no change in meaning.] that is consumed; it is also the production of products that are consumed. Everything that is consumed, such as morning coffee, has a cumulative affect on the environment. The affect begins when the land is cleared to plant coffee and continues with the generation of waste from the processing, packaging and consumption of the coffee. Not only are we loosing land from housing and industrialization, land is also being consumed by landfills and other processes used to elevate hazardous waste. The larger the population, the more waste that is created and it [This is a run-on sentence because there is not a comma before the conjunction. Run-on sentences occur when conjunctions (and/or) and punctuation marks (commas and semicolons) are not used properly. ] must go somewhere. Trash and hazardous materials are buried in large landfills in the earth’s soil, and often those hazardous gases seep into our running water and are absorbed into the soil (Putten, 2004).

A serious water shortage is developing nationwide. This pie chart represents freshwater consumption per day in the United States.

The impact of human population growth on the world’s biodiversity and the health of the Earth’s ecosystems are enormous. Human population growth is perhaps the largest of the challenges that face wildlife in their struggle to survive. Efforts to keep the wild alive must focus both on preserving the natural areas where endangered and threatened species live and work to achieve a balance between population and nature.

Pacific Northwest salmon follow a lifecycle that carries them from the cold, clear, freshwater streams of the Northwest to the salty Pacific Ocean, and back to the inland streams in which they were born. Once there, the adult salmon lays its eggs and dies. A century ago, there were approximately 30 million wild salmon that migrated up the Columbia River each year to spawn; today, roughly three million wild salmon survive. Their declining numbers are closely tied to the environmental impacts of America’s consumption patterns over-fishing, the introduction of hatchery fish, habitat degradation, and hydroelectric dams have all contributed to the decline of wild salmon populations (Norton, 2000).

Forest destruction extensively alters migratory bird habitat and results in polluted runoff and soil erosion. This can cause flooding, if there is no vegetation to hold soil to hills and mountain areas which can run off into roads, pollute river and streams, and also [Word use: these two words are redundant (one is either the same as the other or contained in...
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