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Greenhouse_Effect 时间:2013-11-13
Greenhouse Effect The earths climate is predicted to change because human activities are altering the chemical composition of the atmosphere through the build up of greenhouse gases primarily carbon dioxide, methane, and nitrous oxide. Energy from the sun drives the earths weather and climate, and heats the earths surface. This causes the earth to radiate the energy back into
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Acid_Rain 时间:2013-11-13
Acid Rain What is acid rain' Acid rain is the term for pollution caused when sulfur and nitrogen dioxides combine with atmospheric moisture. The term 'acid rain' is slightly misleading, and would be more accurate if deemed 'enhanced acid rain', as rain occurs acidic naturally. Acidity is measured on what is know as the pH scale. Fourteen is the most basic, seven is the most neutral, and
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Incentives_For_Non-pollution 时间:2013-11-13
Incentives For Non-pollution Economic incentives are instruments that use financial means to motivate polluters to reduce the health and environmental risks posed by their facilities, processes, or products. These incentives provide monetary and near-monetary awards for polluting less and impose costs of various types for polluting more, thus supplying motivation for polluters to change
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Environmental_Issues 时间:2013-11-13
Environmental Issues Pike, J.R., J.H. Shaw, D.M. Leslie Jr., M.G. Shaw and J.E. Smith. 1999. A geographic analysis of the status of mountain lions in Oklahoma. Wildlife Society Bulletin 27:4-11. Abstract: Wildlife managers in the state of Oklahoma manage many species of animals in their state parks and nature preserves. They need current up to date information in order to make
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Acid_Rain 时间:2013-11-13
Acid Rain Acid Rain Imagine that you are dying, simply because you ate a fish. This death is a result of acid rain. Acid rain is a silent murder in todays ecosystems. The effects of acid rain on the ecosystem can be deadly. Acid rain is all the rain, snow, mist that falls from the sky onto our planet that contains an unnatural low pH level. It is not to be confused with uncontaminated
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Acid_Rain 时间:2013-11-13
Acid Rain Acid rain refers to all types of precipitation--rain, snow, sleet, hail, fog--that is acidic in nature. Acidic means that these forms of water have a pH lower than the 5.6 average of rainwater. Acid rain kills aquatic life, trees, crops and other vegetation, damages buildings and monuments, corrodes copper and lead piping, damages such man-made things as automobiles, reduces so
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Acid_Rain 时间:2013-11-13
Acid Rain Acid rain is a great problem in our world. It causes fish and plants to die in our waters. As well it causes harm to our own race as well, because we eat these fish, drink this water and eat these plants. It is a problem that we must all face together and try to get rid of. However acid rain on it's own is not the biggest problem. It cause many other problems such as aluminum p
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Acid_Rain 时间:2013-11-13
Acid Rain Acid Rain Acid rain is a serious problem with disastrous effects. Each day this serious problem increases, many people believe that this issue is too small to deal with right now this issue should be met head on and solved before it is too late. In the following paragraphs I will be discussing the impact has on the wildlife and how our atmosphere is being destroyed by acid
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Acid_Rain 时间:2013-11-13
Acid Rain What is Acid Rain' You hear about it all the time in the news and it is very important to the earths ecosystem. In simple terms, acid rain is rain that is more acidic than normal. All objects in nature have a certain level of acidity but acid rain has too much acid in it. Acid rain is a complicated problem, caused by air pollution. Acid rain's spread and damage involves
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LA_Beach_Cleanup 时间:2013-11-13
LA Beach Cleanup For introductory reference, Memo #1 regarding this issue is dated 2/14/02. The tides have changed in southern California and the Environmental Protection Agency has successfully assigned specific pollution limits to most of the waterways mentioned in Memo #1. Now that step one is completed, step two must be put in motion. Step two should include several methods of
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Latin_American_Issues__Environmental_Degradation 时间:2013-11-13
Latin American Issues: Environmental Degradation Latin America Issues Environmental Degradation Concept Statement: Several rain forests in Latin America, especially the Amazon rain forest, have been suffering from many environmental impacts that are diminished acre by acre of forest. Rain forest resources and species of plants and animals are being destroyed in shocking numbers
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Logging_And_Fishing_-_Enviornmental_Implications 时间:2013-11-13
Logging And Fishing - Enviornmental Implications Abolishing Logging Tactics To Save Fish Proves to Be Fatal to Surrounding Economy As most would interpret, densely wooded portions of land and or forests serve not only as a place of feasible ecological balance but also as a realm of majestic tranquility. Other individuals, ones with an opposing viewpoint, view forests as a potential
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Love_Canal 时间:2013-11-13
Love Canal The Love Canal In the 1890s, William T. Love began digging a canal near Niagara Falls, New York. The canal was never finished, leaving a seemingly useless hole in the ground. But when industries starting flocking to the area in later years, this trench, Love Canal, was bound to find a use. In the 1930s, various companies began dumping chemical waste into the canal. Hooker C
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Methyl_Tertiary_Butyl_Ether. 时间:2013-11-13
Methyl Tertiary Butyl Ether. MTBE Methyl Tertiary Butyl Ether. The word sounds like its foreign. It might even sound like it is out of that nerd in highschools chemistry book, but it is becoming as common as wildfires in Redding. Until about seven years ago, when it was first introduced into our lives, many Americans had never even heard the word methyl tertiary butyl ether. N
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Environmentally_Friendly_Products 时间:2013-11-13
Environmentally Friendly Products Many advertisements are misleading and untrue. They leave out the important information that consumers need to know about. Many products make claims to be environmentally friendly. More often than not this catches the attention of the consumer. What the advertisement says may very well be true, however, it may leave out important details. My
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Global_Warming 时间:2013-11-13
Global Warming Today, scientist argue over the consequences of global warming. Scientist say that the heating of the atmosphere can influence many health problems. Some of the related problems due to global warming are death to heat waves and other climate changes, and infectious diseases. With the atmosphere temperature rising, we all will be at risk. The climate not only harms
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Air_Pollution 时间:2013-11-13
Air Pollution Air Pollution Air pollution also has a dramatic effect on natural resources. Ecosystems such as forests, wetlands, coral reefs, and rivers perform many important services for Earth's environment. They enhance water and air quality, provide habitat for plants and animals, and provide food and medicines. Any or all of these ecosystem functions may be impaired or destroyed
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Nonrenewable_Resources 时间:2013-11-13
Nonrenewable Resources We may soon run out of some of our nonrenewable resources. These can never be replaced once gone. Some examples of nonrenewable resources are coal, oil, natural gas, and minerals. These resources were highly misused until government regulations were passed to protect them. For example, for every ton of coal mined, one ton was wasted. The government has now
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Our_Waters... 时间:2013-11-13
Our Waters... One natural resource that we as people take great advantage of is water. Water is a resource we use each and every day, and the one thing about water is that we cant create it. Sure, we can develop devices that can purify water and make it suitable for drinking but we can develop a substitute for it. Water is an ever-recycling resource, which means we have to do everything
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Air_Pollution 时间:2013-11-13
Air Pollution Air Pollution Introduction Air pollution is nothing new. Ever since the discovery of fire, less-than-desirable substances have been vented into the air. One of the first air-pollution regulations dates back to the fourteenth century, when King Edward I banned the burning of sea coal in lime kilns. U.S. air-pollution regulations have their roots in British Common Law. But
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Air_Pollution 时间:2013-11-13
Air Pollution What is Air Pollution' Air pollution is actually the addition of any harmful substances to the atmosphere, which causes the damaging of the environment, human health and the quality of life. With the development in industry, came along the increase in air pollution, which occurs inside homes, schools, offices even in the countryside. Consequently there has been an increa
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Air_Pollution 时间:2013-11-13
Air Pollution Fact Sheet N° 187Revised September 2000AIR POLLUTIONincluding WHO's 1999 Guidelines for Air Pollution ControlExposure to air pollution is as old as the use of fire by human beingsAir pollution, both indoors and outdoors, is a major environmental health problem affecting developed and developing counties alike. It comes from sources of dust, gases and smoke, and is generated
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Pesticide_Use_In_Agriculture_A_Controversy 时间:2013-11-13
Pesticide Use In Agriculture A Controversy Pesticide Use in Agriculture A Controversy Pesticides include insecticides, herbicides and fungicides, which kill insects, weeds, and are harmful to humans. They often have direct or indirect effects on other living things. Synthetic pesticides are chemical compounds; some are more toxic than others. Synthetic pesticides can release compou
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Exotic_Plants 时间:2013-11-13
Exotic Plants Classification essay of exotic plants Exotic plants in our environment and trough out the world can be very interesting to study and are often placed into different classifications according to some very unusual characteristics they may display. Scientists or botanists often classify them according to their different characteristics they use in the way the plants trap the
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Poaching 时间:2013-11-13
Poaching We are pushing a hundred species a day, four species an hour, into evolutionary oblivion, says Richard Swift. In one month 3,000 species will be gone. These animals are butchered for their skin, feathers, tusks and internal organs, or taken as cage pets. These animals, once in abundance are killed in mass numbers and are becoming extinct or endangered at an alarming rate. This
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Pruning_Decision_Trees 时间:2013-11-13
Pruning Decision Trees Review Article Pruning Decision Trees Introduction Expert Systems often utilize massive data structures to store information that later need to be searched. These data structures, called decision trees, are in most cases incomprehensible to a user due to their complexity. Methods of prioritizing, storing, and manipulating these structures have been the s
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Pollution 时间:2013-11-13
Pollution Air Pollution The plant stretched its leaves out toward the sun in hopes of growing strong. Yet it was only to find out that it would not survive because there was no sun. Instead a thick layer of smog blanketed the sky. Humanity has not yet reached this point, but if we continue on this path then this dismal future will become a reality. One of the greatest dangers ef
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Pollutions_In_The_City 时间:2013-11-13
Pollutions In The City Pollutions in the City Pollution is the act or process of polluting or state of being polluted especially the contamination of soil, water or the atmosphere by discharge of harmful substances. Pollution has been a major issue in all cities for a long time and is continuing to get worse. There are different types of pollution. One type is air pollution.
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Overpopulation 时间:2013-11-13
Overpopulation There are several problems that affect the world today: war, crime, pollution, and several others. Overpopulation is a serious dilemma that is growing every year, every minute, and every second. It is the root of most, if not all, of the worlds problems1. It is the greatest global crisis facing humanity in the twenty-first century. Overpopulation is the major global p
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Population_Growth 时间:2013-11-13
Population Growth California Government Problems: Population Growth. California is currently the most populous state in the nation, with an estimated state population in excess of 32 million people. By 2025, Californias population is estimated to grow to over 70 million. Furthermore, more than half the population growth in the 1990s came from immigration. The combination of high pop

