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

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  • 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
  • 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
  • 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
  • Air Pollution - 1,546 words
    Air Pollution Air Pollution is addition of harmful substances to the atmosphere resulting in damage to the environment, human health, and quality of life. One of many forms of pollution, air pollution occurs inside homes, schools, and offices; in cities; across continents; and even globally. Air pollution makes people sick, it causes breathing problems and promotes cancer, and it harms plants, animals, and the ecosystems in which they live. Some air pollutants return to earth in the form of acid rain and snow, which corrode statues and buildings, damage crops and forests, and make lakes and streams unsuitable for fish and other plant and animal life. Pollution is changing the earth's atmosph ...
    Related: air pollution, pollution, greenhouse gases, global scale, burn
  • Air Pollution Report - 1,230 words
    Air Pollution Report Air pollution is a major problem facing our environment today. This dilemma is harmful to every single living creature on this planet. How can we limit the causes of air pollution? There are industrial as well as residential causes of air pollution. How can we limit the effects of air pollution? We all know it affects the environment, but do we all know it also can affect us directly? How can we control air pollution? Is the government doing its job to protect us? Air pollution can be defined as impureness of the air. Air pollution is all around us. It might not be as clearly visible in some areas as others but the fact is that air pollution is still there affecting us i ...
    Related: air pollution, industrial pollution, pollution, mass destruction, york city
  • 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
  • Alaskan Aviation - 1,481 words
    ... made a timed distance run with a stopwatch and compass, and dropped bombs on an unseen target. This became known as dead reckoning bombing or "DR" runs. Eareckson also began using time-delayed fuses on his bombs that prevented the bombs from exploding under the low flying aircraft that had just dropped its ordnance (Garfield 106). His experiences in Alaska were to contribute significantly to the air war in the Pacific. Having flown in the worst weather imaginable, Col. Eareckson was more than capable of handling a few enemy fighters. Another unique aspect of the war in Alaska was the Lend -Lease program. The Lend- Lease program was established to send supplies and equipment to the embat ...
    Related: alaskan, aviation, international airport, ozone layer, elmer
  • Bears Beware - 892 words
    Bears Beware subject = Environmental Issues title = Bears Beware In our world today many animals and plants are loosing their fight against human intervention in their once well-balanced ecosystem. We are all aware of the extinction of the dinosaurs and the dodo birds, however most people do not realize that annually thousands of species of our flora and fauna are now becoming extinct. This on going trend is increasingly threatening our bio diversity and global ecology. To give a specific example of animal depletion I will focus on Canadian bears. The following factors are responsible for their decline. Hunting, loss of habitat, and just plain apathy on part of the public to preserve the bio ...
    Related: bears, environmental issues, acid rain, first nations people, personally
  • Black Gold Texas Tea - 1,270 words
    Black Gold Texas Tea Trevor MacKenzie Black Gold the Texas Tea In this paper I will touch on topics of oil prices, the demise and growth of oil companies large and small and international oil regulators, natural oil deposits and their locations and life expectancy, and the future of the oil industry and all it effects. I have chosen to write on this topic because of personal interest in the worlds biggest resource, oil. In past years I have thought of how the modern world revolves around certain elements and ideas, one of these is oil. I wanted to try to get answers to questions I have had about How long can we keep extracting oil from the Earth? and How will people overcome a worldwide comp ...
    Related: black gold, texas, petroleum exporting, life expectancy, ozone
  • Cannabis Hemp Marijuana - 2,262 words
    Cannabis Hemp. . .Marijuana! Article copied work for work from April 1990 Issue of High Times Magazine pages 37-41 and page 57. "OUR CHALLENGE TO THE WORLD: TRY TO PROVE US WRONG-- If all fossil fuels and their derivatives (coal, oil, natural gas, synthetic fibers and petrochemicals) as well as the deforestation of trees for paper and agriculture (e.g., Brazilian & Indonesian rainforests), are banned from use in order to save the planet, preserve the ozone layer and reverse the greenhouse effect with its global warming trend: Then there is only one known renewable natural resource able to provide all(underlined) of the following goods and essentials such as paper and textiles; meet all of th ...
    Related: cannabis, hemp, marijuana, stock exchange, true meaning
  • Cannabis Hemp Marijuana - 2,195 words
    ... lity is strong enough that we must try. Ultimately, the world has no other rational environmental choice but to give up fossil fuel. ENERGY SECURITY At this point, we can tell OPEC goodbye forever. The national balance of payments deficit is cast by the wayside and your personal energy bills can by cut by at least 50%, and perhaps as much as 90% with biomass from hemp and recycled waste. No more elderly or poor people freezing to death or living in misery in the winter. If introduced to Third World nations, hemp biomass could drastically cut our overseas aid and reasons for war, while raising the quality of life there by quantum leaps. The world's economy will/should boom as it never has ...
    Related: cannabis, hemp, marijuana, marijuana prohibition, u.s. government
  • 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
  • Comets - 1,209 words
    Comets The first written records of comets date back to nearly 3,000 years ago from China and Europe. The accounts of these comets were believed to be the causes of terrible events that occurred afterwards. In more recent times, however, astronomers have found out what they really are. A comet is basically a mixture of ices, from both water and frozen gases, and dust. They have also been given the names dirty snowballs or icy mud balls. The typical comet is less than 10 kilometers across. They spend most of their time frozen solid in the outer parts of our solar system. Comets are composed of five parts: the nucleus, coma, hydrogen cloud, dust tail, and ion tail. The nucleus is pretty solid ...
    Related: comets, solar wind, magnetic field, total number, decrease
  • Economic Perspectives On The Internet - 2,213 words
    ... ials. The Department of Commerce's Office of Antiboycott Compliance (OAC) administers the program through ongoing investigations of corporate activities. OAC operates an automated boycott-reporting system providing statistical and enforcement data to Congress and to the public, issuing interpretations of the regulations for the affected public, and offering nonbinding informal guidance to the private sector on specific compliance concerns. U.S. firms with questions about complying with antiboycott regulations should call OAC at 202-482-2381 or write to Office of Antiboycott Compliance, Bureau of Export Administration, Room 6098, U.S. Department of Commerce, Washington, DC 20230. Antitrus ...
    Related: economic cooperation, economic perspectives, foreign trade, resource conservation, entitled
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