Friday, August 2, 2019
Global Warming Essay
The Global Warming theory has become increasingly popular over the past few years. Citizens of the world are being encouraged to be more environmentally conscious by others including politicians, celebrities, and world organizations. The problem with the theory lies in the fact that it has become more and more controversial as it gains publicity and attention. The basic concept behind this theory is that the earth was made with a balance of ââ¬Å"greenhouse gassesâ⬠. These gasses are naturally occurring within the atmosphere and they essentially make the planet habitable by keeping it warm. When the world became more industrialized, the amount of carbon dioxide that was being emitted into the atmosphere increased. In the past hundred years or so, that number has more or less skyrocketed when compared to the previous amount due to the invention and mass distribution of automobiles, aircraft, trains, and boats. The surplus of greenhouse gasses are beyond what the earth can store and are creating a pseudo blanket around the world. The earth has thence become more and more hot, ââ¬Å"â⬠¦the globe has heated up by about one degree Fahrenheit over the past centuryââ¬âand it has heated up more intensely over the past two decades. â⬠(IPCC, 2001) To be able to correctly put that into perspective one must have the knowledge that the temperature difference between the ice age and current times is nine degrees. The potential repercussions of the increase in global temperature include more intense storms, more severe droughts, and rising sea levels. There are several ways to have a more positive impact on the environment. Everything from buying more energy efficient cars to helping control the population has the potential to help reduce the effects of global warming. One of the largest contributors to the increase in global temperature in the past century has been the ever expanding population. It is a simple math problem, if one person produces too many greenhouse gasses and then proceeds to have seven children, the greenhouse emissions with increase even more so. The more people habituating the planet, the more potential there is for emission of greenhouse gasses. In short, the basis of this argument other than years of documented research and scientific discovery is what harm could we do by being more conservative in our use of energy and other entities that produce more than their share of greenhouse gasses? The answer as it stands now is none. The harmful effects of ignoring this crisis are all but proven fact. The problem that the pro- global warming theorists have created is that of social standing and little else. While there may be scientific backing to support some of the theory, the media presents the problem with great sensationalism. Global warming and energy conservation has thus become a trend and losses some of its validity through this. The scare tactics used by the media to ââ¬Å"promote awarenessâ⬠are just that, a linguistic ploy to gain favor. ââ¬Å"Awareness of this global threat reinforced public concern and environmental problems and thereby provided environmental activists, scientists, and policy makers with new momentum in their efforts to promote environmental protection. (McCright, 2000) This statement draws line to the potential benefits that would be received if the pro-global warming theorists were to draw enough attention to the issue. Driven by social empowerment and conviction to environmental protection, these activists misrepresent the actual threat and paint it as being much more intense and imminent than the scientific evidence concludes. The fact that the planetââ¬â¢s temperature is ever changing is solid, however there is no solid proof that humans are responsible for this rise. The earthââ¬â¢s temperature has experienced extreme highs and lows throughout its millions of years in existence and we as humans understand little about what has caused those fluctuation. If humans did not exist billions of years ago, yet the temperature still changed dramatically, then why is it that scientistsââ¬â¢ claim that humans are the cause for this current phenomena? The answer to that question is unknown however one could make the assumption that it may be due to our lack of understanding about the way in which carbon dioxide exists in the atmosphere. The public has no easy access to this information therefore it is easily forgotten or removed from the argument. Global warming is a theory that has been wildly blown out of proportion. Media backing and celebrity endorsements combined with political scare tactics have been used to create the sense of responsibility in this matter. The true concern is being masked by the ââ¬Å"solutionâ⬠that is being presented to the world. The supposed solution to the global warming theorists is to conserve. The real issue at hand is discovery. Science must be perfected or at least further tested before conclusions can be drawn. While evidence exists on both sides, the side that acknowledges the existence of global warming at least has the appearance of more science on its side. The publicity brought to global warming can have the ability to cause people to accept it as fact rather than simply a theory. That being said, it is the belief of this writer that the pro-global warming theory is more valid than the anti-global warming theory. This conclusion was made mostly due to the distrust that this student grew for the anti-global warming supporters. The anti-side invalidates their own arguments by using some basic fallacious thinking and aggressive tactics. Many of the websites and other sources to gain knowledge about the potential non-threat of global warming are extremist and use many common fallacies. For example, here is an excerpt from just one of the many anti-global warming websites available to all on the World Wide Web, ââ¬Å"We all know that the artificial construct known as ââ¬Å"cap and tradeâ⬠is nothing more than a fraud to get companies to pay more taxes. It will have very little, to no, impact on CO2 levels, much less global warming. â⬠(Casey, 2009). The author assumes that the ââ¬Å"cap and tradeâ⬠issue is universally known and understood which a fallacy of hasty generalization is. The second flaw in that particular argument is that it appears to be an argument of outrage in the sense that it degrades the government and paints them to be money hungry and unconcerned with the well-being of its peoples. Websites against global warming take personal attacks at the politicians or celebrities who endorse the idea of global warming. While these personal attacks may hold some general truth, they do not address that personââ¬â¢s ability to become involved with an organization to create awareness for global warming. Personal attacks are used to dissuade the American public from siding with the pro-global warming theory. Celebrities are often used as spokespeople for different causes and charities, but they do not embody what they are speaking for. They are solely a resource to raise awareness to the general population. While it may be true that some scientific evidence has been withheld or not made as accessible to the general population due to its potential harm to the pro-global warming theory, this writer has not been dissuaded from her former school of thought. It is very true that there are more humans on the planet than there were many years ago. It is also true that humans now use more advanced technology that have the tendency to produce a lot of carbon dioxide. The link between what we understand about humans and their production habits and the atmosphere may be blurry, but the question remains, why not conserve? In conclusion, the moral of the global warming story is moderation. Little personal changes may affect the way in which the world climate is changing but if they do not, what harm would we have done? Riding a bike to work or walking to school not only reduces the amount of carbon dioxide being produced, it saves that person money. Global warming may not be as big a threat as the media makes it out to be, but there is scientific evidence supporting the fact that it just may be a threat. Global Warming Essay Global Warming is an issue that concerns almost everybody worldwide: it is the primary cause for the erratic and sometimes devastating weather that is experienced around the world. Global warming is causing the rise in sea level which in turn causes the flooding of coastal areas and areas with low elevation. Is global warming really happening today? Scientists with the United Nations Environmental Program (UNEP) believe it is so (Mank, 2005). It is indisputable that there has been a rise in the concentration of greenhouse gases (GHG) in the atmosphere during the last century, which scientists think may be one of the causes of global warming. The climate change however is not a direct result of the rise in greenhouse gases. Will global warming spell doom for our world? Scientists believe this to be so. ââ¬Å"Much depends on what actions we take now and in the coming years. â⬠Meteorologist Jagadish Shukla of the University of Maryland found out that deforestation would cause rainfall in the Amazon River to decline by more than 26 percent from the current 2. 5 m. to about 1. 8 m. a year (Bellamy & Gifford, 2000). At the same time, the burning of fossil fuels, particularly coal and oil, produces sulfur dioxide and nitrogen oxides which are hazardous to the atmosphere. Findings show that a single smokestack may produce as much as 500 tons of sulfur dioxide a day. When these gases combine with oxygen and moisture, sulfuric acid and nitric acid is formed. The rain will carry the acids to the ground (acid rain) which may cause the depletion of calcium and magnesium in the soil, elements needed by plants for the formation of chlorophyll and wood, or it may cause the release of aluminum in the soil, which are poisonous and can kill the roots of trees (Carwardine, 2000). This study intent to: (1) know the effect of global warming worldwide thus knowing the global warming and doomsday and; (2) widen our knowledge about the ozone slayer and do the humans are the reasons of causing global warming or if its just a natural process that the earth goes through. II. Literature Review Ozone is an unstable oxygen that occurs naturally in the atmosphere (also called isothermal region), the upper portion of the atmosphere above 7 miles where clouds are rare. The ozone layer absorbs the dangerous ultraviolet-B (UV-B) rays while it allows the needed safe light to pass through. Though easily broken down by other gases in the stratosphere, it is constantly being repaired by the sunââ¬â¢s rays. However, man is destroying the ozone layer which serves as a protective umbrella against the sunââ¬â¢s harmful rays. In fact, the ozone layer is destroyed faster than the sunââ¬â¢s rays can produce it. It is being destroyed by industrial gases like CFCs (Johnston, 2000). CFCs was discovered by Thomas Widgley Jr. , a chemist working at the Frigidaire Division of General Motors but were discovered hazardous in 1974ââ¬âonly after 44 years of use, used as coolants in refrigerators and air conditioners and aerosol propellants in spray cans, medical sterilizers, cleaning solvents for electronic components and raw materials for making plastic foams such as coffee cups. CFCs are estimated to account for 14 percent of global warming. It is dismaying to know that ozone depletion can be found in the south (Antarctica) and north (Greenland) poles (Dolan, 2006). According to British scientist Joe Farman, 40 percent of ozone depletion can be found in the South Pole. At the South Pole is a huge vortex with clouds composed of tiny ice particles, giving chlorine millions of tiny spaces through which it can perform its deadly dance with ozone even faster (Simpson, 2000). Both holes at the poles are seasonal, opening and closing each year. In the northern hemisphere, a more populous region, ozone depletion rate is between three percent and seven percent for 17 years, as compared previously to only three percent for100 years. On the other hand, what are the effects of Ultraviolet-B rays to human beings and the ecosystem in general? To humans, they can cause skin cancer and cataract and damage the immune system. To the ecosystem, they can kill planktons (basic element of the ocean food chain), destroy plant life and crops and change global wind and weather patterns. In 1978, Canada, Sweden, the United States and other countries banned the use of CFCs in aerosols. However, other uses of CFCs were found, effecting an increase in its production. The US still uses one-fourth of the worldââ¬â¢s annual supply of CFCs (Turner, 2000). However, in September 1987, 24 nations cooperated for the first time to solve this environmental problem and passed the Montreal Protocol. The agreement issued a call for developed nations to freeze the use and production of CFCs while cutting 50 percent of use and production by 1999. Still, the CFCs currently rising through the troposphere will take seven to 10 years to drift up to the stratosphere. The troposphere is the portion of the atmosphere that is below the stratosphere, extending outward about seven to 10 miles from the earthââ¬â¢s surface (Bellamy & Gifford, 2000). III. Methodology In order to accomplish this study, the researcher used two different methods to make the investigation more informative, accurate, and successful. Aside from gathering information through internet, the researcher gathered information through statistics, charts, and observation. IV. Results and analysis During the earliest times, the life-styles of our ancestors were very simple. The air they breathed was clean. The streams were clear and free of harmful organisms. They used natural fertilizers for their agricultural crops. The surroundings were free of household throwaways. Today, there has been a tremendous growth in science and technology. Such advances have brought about changes in terms of new products, improved equipment, and more effective methodologies. Unfortunately, this same technology which made life easier for us produced wastes which are now affecting the quality of our surrounding, air, water, and land. Factories and motor vehicles send tons of pollutants into our air. Excessive air pollution poses a danger to our health and environment. It can likewise cause stunted growth and even death to our plants. Out streams are polluted by discharges from industrial plants that use chemicals. Garbage and sink wastes are carelessly thrown in our surroundings. Synthetic fertilizers and insecticides pollute our land and farm products (Johnston, 2000). At the same time, the burning of fossil fuels, particularly coal and oil, produces sulfur dioxide and nitrogen oxides which are hazardous to the atmosphere. Findings show that a single smokestack may produce as much as 500 tons of sulfur dioxide a day. When these gases combine with oxygen and moisture, sulfuric acid and nitric acid are formed (Jenner, 1999). The rain will carry the acids to the ground (acid rain) which may cause the depletion of calcium and magnesium in the soil, elements needed by plants for the formation of chlorophyll and wood, or it may cause the release of aluminum in the soil, which are poisonous and can kill the roots of trees. Moreover, nitrous oxide or ââ¬Å"laughing gasââ¬â¢ is a colorless gas with a sweet taste and odor that is used as an anesthetic in minor surgery that H2O is responsible for about 6 percent of the human contributes to greenhouse warming. Methane or ââ¬Å"cow gas,â⬠on the other hand, makes up about 18 percent of human contributions to greenhouse effect. Cattle, sheep, goats, and other cud-chewing animals give off methane, in burps and flatulence as they digest (Cairncross, 2002). Experts said that what is happening right now is not a matter of adding a few degrees to the average temperature of a community. A rise of this magnitude may cause life, for without the environment, creatures on earth cannot survive (Davidson, 1999). CFCs are estimated to account for 14 percent of global warming. Experts said that what is happening right now is not a matter of adding a few degrees to the average temperature of a community. A rise of this magnitude may cause life, for without the environment, creatures on earth cannot survive With these, are we all aware of the extent of the damages brought about by modernization? Have we contributed to such environmental dilemma? What have we done to minimize such danger to our lives? How can we take care of our environment? We must undertake measures to preserve our resources and minimize utilization of energy before itââ¬â¢s too late. Our fight against pollution is an initial step toward conserving our environmental resources and energy. We must all join hands for this common goal. If present day emissions of greenhouse gases continue, it is estimated that the rate of increase in global mean temperatures will reach about 0. 30 0C per decade. This will mean a likely increase of 1 0C above the present level by the year 2025, and 30 0C before the end of the next century. A. Resolution a. ) Recycling and Reuse of Solid Wastes Solid wastes are now viewed as a potential resource which must be recovered and reused whenever possible. Since disposal forest resources are rapidly being depleted, recycling solid wastes offer a solution to both. Consider the element phosphorus. Mined from phosphate ores, it is manufactured into fertilizers. It enters the plant tissues and we obtain it when we eat plant as vegetable. This is later excreted and joins the sewage system. The sewage system sludge can be used directly as fertilizer or soil conditioner. Used bottles can be used over and over again. Durable plastic containers can be saved for more household uses. Tires can be recapped and used again. Old clothing materials are used as kitchen towels and bags (see Environment Matters: Industryââ¬â¢s Guide to the Issues, the Challenges and the Solutions, 1999). If the materials cannot be used over several times, then they can be shredded and converted into a new form. Old newspapers are repulped into new paper. Broken glasses are ground and manufactured into new ones. Tires are processed to raw rubber. Protein leftovers are manufactured into animal feeds. b. ) Conserving our Forests Every now and then we receive alarming news about our forests being denuded. Big logging concessionaires indiscriminately cut down trees without undertaking reforestation measures. Without trees, the soil is loosened and rapid erosion occurs. As a result fertile topsoil is washed away, which makes growth of other forms of vegetation almost impossible. We suffer great loss of timber, wildlife, and other forest products. But the greatest danger is the occurrence of floods and global warming that cause losses of food, properties, and lives (Davidson, 1999).
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.