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Free research papers and essays on topics related to: ozone depletion

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  • Ozone Depletion Is An Environmental Problem That Many People Do Not Take As Seriously As They Should The Ozone Layer Prot - 1,074 words
    Ozone depletion is an environmental problem that many people do not take as seriously as they should. "The ozone layer protects animal and plant life from the sun's harmful radiation. The depletion of the ozone layer will allow ultraviolet rays to, over time, lead to higher skin cancer rates, eye cataracts, and crop damage." At ground level, ozone, a form of oxygen, is poisonous to humans and other organisms. It causes respiratory problems and damages plants. The greatest concentration of ozone is located in a layer of air called the stratosphere, some 10 to 30 miles above the Earth's surface. About 90% of the Earth's protective ozone layer resides in this level. "The molecule, ozone, is pro ...
    Related: depletion, environmental, environmental problem, environmental protection, environmental protection agency, layer, ozone
  • Adipic Acid - 1,071 words
    Adipic Acid SWOSU ICER98 submitted 2/23/98 Bart Barnett, Bill McKinley, Darren Toczko, Kevin Worley Adipic acid is one of the most used chemicals in the world today, conversly, it contributes significantly to the production of nitrous oxides (NOx), a greenhouse gas. Many methods are available to produce adipic acid, with various results and potential for pollution. The following paper discusses the impacts that adipic acid has on our society and the world's environment. At the end of the paper, is a list of some of the sources used for this topic. Any disagreements between the various sections of this article probably resulted from this being a group effort. Uses Adipic acid is a very import ...
    Related: acid, world today, western europe, united state, cable
  • Air Pollution Report - 1,203 words
    ... es not affect all parts of the world. It is most common in a city such as Los Angeles where these weather conditions exist. Ozone depletion is looked upon as a problem that up till now, we can not fix. Air pollution has caused this hole in the ozone layer. The ozone layer absorbs 99% of the sun's harmful energy. It prevents ultraviolet radiation from reaching the Earth's surface and the troposphere. It protects humans from sunburn, skin and eye cancer, and cataracts. It also prevents much of the oxygen in the troposphere from being converted to ozone (gas). In the mid-seventies chemists F. Sherwood Rowland and Mario J. Malian discovered CFC's were creating a global chemical time bomb by ...
    Related: air pollution, pollution, pollution control, pollution prevention, management program
  • Chlorofluorocarbons Cfcs - 701 words
    Chlorofluorocarbons (CFCs) CFCs are a family of man-made gases used for various industrial purposes. First developed in the 1920's in the United States, CFCs have been used in large quantaties since 1950. The industrialized countries can account for over 80% of CFCs use. CFC-11 is used primarily as a propellant in aerosol cans, although its use has been phased out it is still used in the production of plastic foams. CFC-12 is used in foam production as well as cooling coals of refrigerators and air conditioners. HCFC-22 was recently introduced as a replacement for CFC-12 because of its shorter life in the atmosphere, and thus is less of an ozone depleting drug. CFC-113, methyl chloroform, an ...
    Related: cfcs, greenhouse gases, montreal protocol, aerosol cans, industrialized
  • Coral Reefs Are Arguably The Worlds Most Beautiful Habitats Coral Reefs Have Been Called The Rainforests Of The Oceans, Becau - 1,293 words
    Coral reefs are arguably the worlds most beautiful habitats. Coral reefs have been called the rainforests of the oceans, because of the rich diversity of life they support. Scientists have not yet finished counting the thousands of different species of plants and animals that use or live in the coral reef. There are three types of coral reefs: fringing reefs, barrier reefs, and atolls. Fringing reefs are located close to shore, separated from land by only shallow water. Barrier reefs lie farther offshore, separated from land by lagoons more than ten meters deep. Atolls, on the other hand, are formed far offshore and they make a ring-shaped reef that close a circular lagoon. Coral reefs are t ...
    Related: arguably, barrier reef, coral, coral reefs, great barrier reef
  • Depletion Of The Ozone Layer - 1,052 words
    Depletion of the Ozone Layer Depletion of the Ozone Layer CHEM 151 Research Paper July 11, 1996 The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger, additional ultraviolet rays are allowed to pass through. These rays cause cancer, cataracts, and lowered immunity to diseases.1 What causes the depletion of the ozone layer? In 1970, Crutzen first showed that nitrogen oxides produced by decaying nitrous oxide from soil-borne microbes react catalytically with ozone hastening its depletion. His findings started research on "global biogeochemical cycles" as well as the effects of supersonic transport aircraft that release nitr ...
    Related: depletion, layer, ozone, ozone depletion, ozone hole, ozone layer, stratospheric ozone
  • Environmental Pollution - 752 words
    ENVIRONMENTAL POLLUTION Automobiles all around the world everyday, and their exhaust destroys our air everyday. Our environment is a major aspect of our life today. Many of us dont take our Earth seriously and think that as long as pollution doesnt hurt them they can go ahead and throw garbage on the ground or spill oil down the drain. Well to many people have that theory and they are killing off our Earth and also physically harming themselves from the air they breath and the water they swim in. Our Earth is fragile like a human and people don't know. There are many different types of environmental pollution (e.g. Water, air, atmosphere.) Scientists believe that all cities with populations ...
    Related: air pollution, environmental, environmental pollution, pollution, water pollution
  • Global Warming - 1,544 words
    Global Warming (After a lot of reading and hunting around on the net, I found a great deal of information on this topic. I had never really researched on it before so wanted to make sure that calculations agreed from report to report. Most of them did so I will base my answer on these different reports. This subject is extremely interesting, scary and a bit of a shock as to how much we have abused and taken advantage of this Earth. Though progress as far as technology has been something we make use of and enjoy, we are paying for it in ways I never thought of before this subject came up in this class! Please forgive my ignorance. I am troubled that my children and their children will suffer ...
    Related: global warming, warming, population problem, fossil fuel, killer
  • Natural Resource Aspects - 1,922 words
    Natural Resource Aspects NATURAL RESOURCE ASPECTS OF SUSTAINABLE DEVELOPMENT IN LEBANON AGRICULTURE Decision-Making: Coordinating Bodies The Ministry of Agriculture (MoA) and The Rural Development and Natural Wealth Directorate are most responsible for agriculture. National and International NGOs and UN organizations are also active. Programmes and Projects In terms of rural development, MoA is implementing a $5.5 million internationally-supported integrated rural development programme in the Baalbeck-Hermel region to provide small- and medium-scale farmers assistance which would lead to sustainable human development through startup activities. These activities include improvement of health, ...
    Related: resource, industry association, national standards, adverse effects, gases
  • Nuclear Power: Cons - 1,137 words
    Nuclear Power: Cons In our society, nuclear energy has become one of the most criticized forms of energy by the environmentalists. Thus, a look at nuclear energy and the environment and its impact on economic growth. Lewis Munford, an analyst, once wrote, "Too much energy is as fatal as too little, hence the regulation of energy input and output not its unlimited expansion, is in fact one of the main laws of life." This is true when dealing with nuclear power. Because our societies structure and processes both depend upon energy, man is searching for the most efficient and cheapest form of energy that can be used on a long term basis. And because we equate power with growth, the more energy ...
    Related: cons, nuclear, nuclear energy, nuclear power, business world
  • Nuclear Weapons - 1,959 words
    Nuclear Weapons A major problem concerning the world today is the disposal of nuclear weapons. With the Cold War, we have seen a massive build up of nuclear weapons, and no, that we are no longer in a state of global warfare, what is to be done with them? As a result of the build-up in nuclear weapons during the cold war the world is now facing major environmental problems trying to deactivate them, and in addition major debate are occurring on the policies of disarmament and deterrence as solutions to this global problem. Countries are becoming more aware of the fact that their citizens do not want to have to worry about a nuclear attack or environmental effects of nuclear weapons testing. ...
    Related: biological weapons, chemical weapons, nuclear, nuclear disarmament, nuclear forces, nuclear fusion, nuclear power
  • Ozone - 983 words
    Ozone annon Ozone is an important molecule in maintaining the homeostasis in the environment. Ozone, the molecule O3, makes a layer in the stratosphere, situated 10 to 15 kilometers from the earth's surface. The dioxide molecule, O2 and Oxygen atom O, collide with each other result in the formation of Ozone, O3. In this reaction, the molecule O3 contains an excess of energy. Once the molecule is formed, it is not stable enough to last long. The energy-rich O3 molecules discards the excess energy by colliding with another atom or molecule and transferring the energy in the form of heat. In the results of the decomposition of ozone into O2 and O in the ozone layer, solar radiation is absorbed. ...
    Related: ozone, ozone depletion, ozone hole, ozone layer, immune system
  • Ozone Layer - 1,860 words
    Ozone Layer Some scientists have proclaimed that the human race is slowly depleting the layer of ozone which protects us from ultra violet light. In reality, humans have very little control of the world in which we live. Scientific evidence has shown that there is very little depletion in the ozone layer and the contributions the human race makes towards this depletion is and always will be insignificant compared to nature. The theories of the depletion and what it would cause are flawed and contradictory. Where and when did this global killing threat begin? It all began in the mid 1960's when the United States government began pursuing super sonic transports. These would be planes which wou ...
    Related: layer, ozone, ozone depletion, ozone hole, ozone layer
  • Ozone Layer Depletion - 1,142 words
    Ozone Layer Depletion The Potential Effects of a Depleted Ozone Layer And God said, let there be light and there was light and then God saw the light, that it was good ( Genesis 1: 3-4 ). Undoubtedly, light is good. Without light man could not survive. Light is the ultimate cosmic force in this universe allowing man to progress and flourish. In the form of heat, light from the sun warms the Earth. Light, also, is the single most important factor influencing the growth and development of plants. Photosynthesis, a process by which plants incorporate light from the sun, allow plants to botanically grow and survive. Certain forms of light are harmful and thus can be said are 'bad'. A natural umb ...
    Related: depletion, layer, ozone, ozone depletion, ozone layer
  • Ozone Layer Depletion - 1,106 words
    ... re available to man, than being mostly confined to polar water regions, another principal food resource could be added to man's long list of them. Another important feature involved in a decline in phytoplankton numbers and productivity is the fact that phytoplankton helps produce and recycle the world's oxygen supply ( Bowermaster et al, 1990, p.40 ). An increase in ultraviolet light can thus endanger an entire ecosystem without necessarily killing off the masses. By altering the respiratory balance in an ecosystem a variety of species would be affected. Furthermore, the same oxygen recycled by phytoplankton is breathed by all animals and man himself thus adding to the importance of the ...
    Related: depletion, layer, ozone, ozone depletion, ozone layer, stratospheric ozone
  • Ozone Layer Poisoning - 1,109 words
    Ozone Layer Poisoning The poisoning of the Earths ozone layer is increasingly attracting worldwide concern for the global environment and the health effects of life on the Planet Earth. There is not just one particular cause for the ozones depletion; the accumulation of different pollutants into our ozone layer has all added up and equaled a worldwide problem. There is not just one effect from the poisoning of the ozone, but instead multiple ramifications from diseases to death. The damage to the ozone is increasing with every second; moreover, there are many ways we can help reduce the problem and preserve the ozone layer. Ozone is a pale blue gaseous form of oxygen, in chemical form it is ...
    Related: layer, ozone, ozone depletion, ozone layer, poisoning
  • Ozone Layer Poisoning - 1,099 words
    ... diation could get so high that it may start burning trees and eventually forrests, in the process destroying our sources of oxygen that we need to survive. The increase in radiation will start to diminish crops and other food sources. Starting with the depletion of the ozone layer, the domino effect of the extinction of biological systems on Earth would continue to plants and then on to the marine ecosystem. The effects of poisoning of the ozone layer will lash out on the marine ecosystem. The marine ecosystem would severely suffer from the thinning ozone and the increase exposure to ultrviolet radiation. Starting with phytoplankton, the foundation of acquatic food chains, would loose th ...
    Related: layer, ozone, ozone depletion, ozone layer, poisoning
  • Ozone Layer Solid Research - 4,719 words
    Ozone Layer Solid Research Subject: TABLE OF CONTENTS How to get this FAQ Copyright Statement General remarks Caveats, Disclaimers, and Contact Information TABLE OF CONTENTS 1. THE STRATOSPHERE 1.1) What is the stratosphere? 1.2) How is the composition of air described? 1.3) How does the composition of the atmosphere change with 2. THE OZONE LAYER 2.1) How is ozone created? 2.2) How much ozone is in the layer, and what is a 2.3) How is ozone distributed in the stratosphere? 2.4) How does the ozone layer work? 2.5) What sorts of natural variations does the ozone layer show? 2.5.a) Regional and Seasonal Variation 2.5.b) Year-to-year variations. 2.6) What are CFC's? 2.7) How do CFC's destroy oz ...
    Related: layer, ozone, ozone depletion, ozone hole, ozone layer, solid, stratospheric ozone
  • Ozone Layer Solid Research - 4,597 words
    ... ne hole is firmly established to be halogen chemistry....There is not a full accounting of the observed downward trend in global ozone . Plausible mechanisms include heterogeneous chemistry on sulfate aerosols [which convert reservoir chlorine to active chlorine - R.P.] and the transport of chemically perturbed polar air to middle latitudes. Although other mechanisms cannot be ruled out, those involving the catalytic destruction of ozone by chlorine and bromine appear to be largely responsible for the ozone loss and are the only ones for which direct evidence exists . (emphases mine - RP) The Executive Summary of the subsequent 1994 scientific assessment (available on the Web at http:/ ...
    Related: layer, national research, ozone, ozone depletion, ozone hole, ozone layer, research council
  • Pollution Of Air - 713 words
    Pollution Of Air Is the air that we are breathing killing us? In this speech you will learn all that you need to know about air pollution. First I will give you the causes of air pollution, then I will list the effects of it, and finally I will tell you how we can prevent air pollution. The average person takes about twenty thousand breaths a day, obviously air is essential to life. Well imagine that the air that you are breathing may be killing you, many diseases are aggravated by air pollution. Scientists believe that all cities with populations exceeding 50,000 have some degree of air pollution. Burning garbage in open dumps causes air pollution, and also it smells pretty bad. Air polluti ...
    Related: air pollution, pollution, motor vehicles, south pole, motor
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