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Global Warming in Canada, 2002.
This paper looks at the dangers of global warming, or the rising of the earth's temperature, as it is affecting Canada.
653 words (approx. 2.6 pages), 2 sources, MLA, AU$ 28.95
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Abstract
The paper discusses the gases that are involved in creating the greenhouse effect. The writer proposes a solution to global warming for the residents of Canada. The paper looks to prove how an expansion of the forests will not only add to the beauty of the country, but will also aid in the reduction of dangerous gases.
From the Paper
"Due to it?s vastly different climates from one coastline to the other, it is not surprising that Canada has become very interested in the problems of global warming. As a result of global warming, Canada has been struck with heavy heat waves, droughts, floods, and other extreme climate changes. All of these changes effect the lives of the nation in how they live, grow crops, earn livings and save money. Because carbon dioxide has been found to have a large effect on global warming, Canada must increase it?s major sinks of carbon dioxide and decrease it?s major sources. Research has shown that Canadian boreal forests are currently a sink for carbon dioxide. Due to the fact that these forests are still growing, they are able to hold more carbon, but as they mature this ability to store large amounts will decrease. In addition, if these forests continue to burn down or carry insects, they will become a large source of carbon dioxide, instead of a sink (Hengeveld, 519)."
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The Effects of El Nino in Ecuador, 2002.
An El Nino event manifests as the appearance of warm sea surface water in the central and eastern Pacific Ocean near the equator. This paper discusses the effect this event has had on Ecuador.
1,485 words (approx. 5.9 pages), 8 sources, MLA, AU$ 60.95
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Abstract
The writer gives examples of damage done to the country of Ecuador as a result of heavy rains. El Nino battered Ecuador harder than almost any other country. The paper also cites long-term effects of the damage, such as crop destruction and loss of property. The paper then looks at ways in which the country is learning to predict future storms, thereby allowing for preparation.
From the Paper
"The Bermeo family had been driven from their small home and farm, looking for dry ground, unable to get into the overcrowded refugee camps. They had to swim to safety after a food swept through their valley and buried their farm in mud. Their pigs and chicks drowned and the smallest children were saved by climbing into a high tree until a neighbor with a boat rescued them. They said they were afraid of the passing cars and trucks, but more afraid of the water."
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North Carolina Tsunami Risks, 2002.
An insight into tsunamis and their potential threat to the North Carolina coast.
1,152 words (approx. 4.6 pages), 3 sources, MLA, AU$ 47.95
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Abstract
This paper discusses tsunamis, wave trains, or series of waves, generated in a body of water by a sudden disturbance that vertically displace the water column. They ravage coastlines and can be deadlier than hurricanes. Whereas a hurricane is identified weeks in advance, a tsunami can often strike without warning. It examines how scientists have attempted to develop a methodology by which to determine areas where the underwater geography might be conducive to tsunami and have shown that outer continental shelf off southern Virginia and North Carolina is particularly susceptible. It concludes with suggestions of how the relevant communities should be prepared and forewarned before tsunamis strike.
From the Paper
"History has demonstrated to us that these landfall events are rare and usually precipitated by an earthquake. Rather than being constantly subjected to the randomness of geological whim, the Atlantic coast has only produced one tsunami over the course of the last 75 years. Although these tsunamis are deadly, their effects would be indistinguishable from the tidal effects of hurricanes that threaten to strike the eastern seaboard at least once every year. Rather than involve our selves in the costly business of timing tsunamis, the state might consider integrating safeguards into its shoreline infrastructure that would protect the local population against the sea."
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Red Tide, 2002.
An overview of the topic and dangers of red tide - the blooming of a specific form of marine algae which accumulate in a small area.
707 words (approx. 2.8 pages), 8 sources, MLA, AU$ 30.95
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Abstract
This paper discusses Red Tide - the common name for the blooming of certain species of dinoflagellata that have a reddish pigment causing the water to appear to be red when the massive numbers of dinoflagellates accumulate. The paper examines the dangers of Red Tide to human beings in the form of nausea, skin irritation and weakened immune systems. It also shows that Red Tide can be fatal to marine life, especially marine mammals. Finally, the paper discusses the effects of Red Tide on the fishing industry and the various things which are being done to try and control it.
From the Paper
"Red tides have been completely unaffected by pollution, and finding a way to contain outbreaks has been a daunting task for scientists. Most recently, a Woods Hole scientist has been experimenting with using clay to smother the algae (Fairfield). This new method has helped protect the billion-dollar fishing industries in Japan and South Korea, and scientists are hoping it can protect the waters in the United States as well (Fairfield).
Until recently, the research has focused mainly on the toxins emitted, and the chemistry of the harmful blooms ? not on finding ways to control the blooms (Fairfield). While the United States isn?t a fishing economy per se, the National Oceanic and Atmospheric Administration estimate that the U.S. will lose more that $1 billion over the next ten years because of the toxic algae (Fairfield)."
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El Paso Corporation, 2002.
A profile of the El Paso Corporation and the natural gas industry.
1,491 words (approx. 6.0 pages), 9 sources, MLA, AU$ 60.95
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Abstract
This paper provides a company profile of the El Paso Corporation, a leading provider of natural gas services in North America, which holds a primary position in every segment of the natural gas value chain through vertical integration from natural gas production to transportation, trading and power generation. It discusses how the demand for natural gas is increasing accompanied by deregulation and convergence of energy markets and the implications for significant growth opportunities for large, financially strong companies in the energy business. It analyzes the current industry looking at competition, rivalry among existing firms, the threat of substitute products, consumers, suppliers and trends and shows the potential effect on the company of competition and threats.
From the Paper
"Conversely, with deregulation succeeding creating more competition, customers may switch to other providers causing a downward pressure on prices and margins. The threat to the industry lies if a plentifully available, cheaper source of energy such as wind emerges and from environmental concerns over carbon emissions and global warming. Globally, expensive investments in exploration, finding and production can be jeopardized by the threat of war or economies suddenly closing doors due to internal strife, change in ideology etc."
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El Nino and Business, 2002.
A discussion of the positive and negative effects of the weather condition known as El Nino on business.
1,173 words (approx. 4.7 pages), 6 sources, MLA, AU$ 49.95
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Abstract
This paper introduces and discusses the effect on business of El Ni?o, the name Peruvian fishermen gave the warm currents that would show up every few years just before Christmas. It shows how each occurance of the phenomena causes enormous damage in personal and business loss and causes flooding, property damage, crop damage and warming in some areas of the country.
Outline
Introduction
Thesis statement and definition of El Ni?o
Positive affects of El Ni?o
Agriculture
Decreased energy costs
Less snow removal, more jobs
Not as bad as previous El Ni?o
Negative affects of El Ni?o
NOAA results
Less heating costs in Northeast
Damage to crops
Higher prices
Affects to construction
Drought in Hawaii
Ski resorts lose income
Conclusion
From the Paper
"The weather phenomenon known as El Niסo can both adversely and positively affect the business of a particular area. "In the 1982-83 El Niסo, floods did $1.2 billion worth of damage, and the following year's drought cost farmers $10 billion, but consumers in the Northeast saved a tidy $2.5 billion on heating bills" (Armstrong and Veomett 33). Since this is a reoccurring activity, business people should learn from prior events, and protect themselves from damage, destruction, and lost income as best they can. There are insurance policies available for some businesses, and they may be worth the cost in the worst-case scenario."
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Nature and Process of Magnetic Pole Reversals, 2002.
An overview of the theory which predicts a reversal of the Earth's geomagnetic polarity.
6,075 words (approx. 24.3 pages), 20 sources, APA, AU$ 173.95
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Abstract
The paper shows that according to recent research, the earth?s magnetic field has shown signs that it is ready to shift. If this occurs, the magnetic north will point south and the magnetic south will point north and have disasterous effects on Earth. The paper discusses how scientists measure the magnetic field by tracking its history from a gigantic crack in the middle of the Atlantic Ocean that oozes lava. As the lava solidifies into rock, it records the Earth's magnetic polarity at various times. According to these records, the Earth is overdue for another reversal. The paper shows that prior to a magnetic field reversal, the magnetic field typically grows weaker and weaker until it almost disappears. As a result, the poles flip and strong magnetism starts up again. The paper explains how magnetism levels in ancient pottery indicate that over the past 4,000 years, the magnetic field has weakened by about half. In this century alone, it has decreased by five percent. The paper explores theories put forth by scientists that the Earth?s magnetic field could disappear in the next few hundred or thousand years.
Table of Contents
Abstract
Introduction
Origin of the Earth?s Magnetic Field
Paleomagnetism
Field Reversals
Theories of Magnetic Pole Reversals
Earth?s Magnetic Field
The Main Field
Secondary Field
Remanent Magnetization
Electromagnetic Dynamo Effect
Magnetization of Rocks
Curie Point
Processes of Magnetization in Rocks
Magnetic Anomalies
Paleomagnetic Data
Morphology of Reversals
Field Direction and Field Intensity
Field Reversals
What Drives Reversals?
Core-Mantle Boundary Processes
Bibliography
From the Paper
"Over the past three-and-a-half million years, the Earth?s magnetic poles have shifted approximately nine times. This estimate has been found through sampling of the magnetic records formed by rocks in the ocean beds and in ancient lava formations.
Scientists do not know how or why the magnetic poles reverse for sure, nor do they know exactly what effect this will have on life, as we know it. Many believe that the magnetic poles of the Earth reverse an average of every 200,000 years, but the time between reversals has varied widely. The Sun reverses its magnetic poles fairly routinely: essentially every 11 years."
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Ocean Pollution, 2002.
A look at the phenomenon of ocean pollution and its affect on sea life.
1,305 words (approx. 5.2 pages), 4 sources, MLA, AU$ 53.95
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Abstract
This paper introduces, discusses and analyzes the problem of ocean pollution, and how it is affecting marine life. It also looks at what is being done to control pollution in the United States and around the world. The paper shows that, as the world become more industrialized, the pollution in the ocean is becoming more of a problem.
From the Paper
"There are numerous pollutants contaminating the world's oceans ? they have been building up for hundreds of years, and they are both man-made and natural, although man-made pollutants are much more common than natural pollutants. Over 900,000 gallons of oil spills into the oceans every year, either from leaking tankers, oil spills, or leaks from oil dredging machinery. "In 1997, the 22 oil spills reported worldwide involved a total of 15 million gallons (57 million liters) of oil" ("Water Pollution")."
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Evolutionary Mass Extinctions, 2002.
This paper discusses in detail the changes in environment over time that caused mass extinction of animals such as the dinosaurs.
4,290 words (approx. 17.2 pages), 7 sources, MLA, AU$ 137.95
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Abstract
This paper explains that the fossil records tell us that, through out the geological history of earth, mass extinctions have been the norm rather than the exception. This paper states that a better understanding of the role extinction plays in evolution is essential. The author concludes that human beings are uniquely adaptable; they invent procedures as medicine that give them extended control over their environments.
From the Paper
"Of course, the most famous extinction event is that of the dinosaurs, about 65 million years ago. Such events appear in the fossil record as far back as Precambrian time when it is believed that life first began. Ideas of mass extinction has been an issue of controversy between many geologists towards the idea that it is related to intermittent catastrophes such as the striking of the earth's surface by a large asteroid or comet. Many paleontologists and evolutionary theorists reject such ideas and believe them to be unjustified."
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Plate Tectonics, 2002.
A paper that identifies and argues that plate tectonics is responsible for changing continental landmasses through geological occurrences
2,650 words (approx. 10.6 pages), 19 sources, MLA, AU$ 96.95
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Abstract
This paper help explains how Plate Tectonics has caused changes in continental landmasses through geological occurrences. It presents the main controversy in the Plate tectonic theory - whether the movement of the plates has displaced landmass across the continents or not and whether it is the sole reason for the change of the landmass or it is through atmospheric influence.
From the Paper
"Thousands of years ago the earth?s surface has been hypothesized as one big landmass. The Earth's surface has been constant motion. ?Fragmented into giant sheets of solid rock that glide atop a layer of hotter, more pliable material, the globe's appearance is forever changing.? [Cowen, 1999] . These plates are semi rigid, floated on flow of mantle. The plates measured around 50 miles, thickness of 25 miles on land and 4 miles thick under the oceans. Their movement was categorized by an average of a few inches a year. Even today, geologists and tectonicists hypothesize the earth to continue this movement in similar slow manner, even if we do not notice it. The plates? movement is called the Plate Tectonic Theory, a theory presented in 1912 but upheld in 1960 . "
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Underwater Acoustics, 2002.
A discussion on underwater acoustics and acoustic energy used to detect objects in the oceans or sea beds.
1,375 words (approx. 5.5 pages), 6 sources, MLA, AU$ 55.95
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Abstract
The following paper discusses acoustics signals that detect the presence and location of commercially useful fish, map the ocean floor to establish the safest paths for supertankers, explore the earth?s geological formations and discover oil deposits in the ocean floor.
From the Paper
"At a bottom of the permanent thermocline or below it, water temperature is uniform. Here, the pressure of the water column due to the depth takes over. The sound speeds then increase on account of increase in pressure. (Pacific) The deep sound channel axis is between 600 and 1,200 m below the sea surface at low and middle latitudes. This is deepest in the subtropics and come to the surface in high latitudes, where sound propagates in the surface layer. (Pacific)
Sound waves can be ?trapped? in the deep sound channel and propagate in long distances. This is because these waves go through little attenuation beyond that, and this is due to geometric scattering or spread as well as minor volume scattering in water."
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Potassium Argon and the Archaeologist, 2002.
A insight into the role of potassium argon dating within the field of archaeology.
760 words (approx. 3.0 pages), 5 sources, MLA, AU$ 33.95
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Abstract
There are many techniques for dating within the field of archaeology, one of these methods is the The K-Ar (Potassium-Argon) method which has been a vast success within the field of geology. This paper examines how it works and what methods are used to glean the date from archaeological artifacts and remains.
From the Paper
"It is possible to date rocks with a low potassium content such as basalts in this way. Sadly the dates are not always secure due to the behaviour of the geochemicals of the parent and daughter elements as they are likely to being disturbed by geological events such as weathering or reheating that normally take place during the formation of a rock. Potassium argon dating allows scientists to date volcanic rocks between two billion and 100,000 years old."
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The Greenhouse Effect, 2002.
An analysis of an article that appeared in the "New York Times" about the melting of the polar ice caps.
900 words (approx. 3.6 pages), 4 sources, MLA, AU$ 38.95
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Abstract
This paper discusses whether or not the greenhouse effect is really responsible for the earth's warming over the last century. It brings up the theory that perhaps this a part of the earth's natural cycle. This paper then discusses the Milankovitch Cycles which details the natural changes that the earth undergoes and the effect of these changes on the environment. The author feels that this theory, as presented in the article, disproves the greenhouse effect theory.
From the Paper
"The same happens in reverse in a time of high temperatures.
The ocean circulation systems redistributes heat better and this accounts for the speed of the ice melting in the Antarctic.
Milankovitch Cycles are than able to explain the temperature differences noted in the Antarctic. The ice melting is a direct result of this rise in temperature. The higher temperatures effecting the ocean circulation system also adequately explains why the ice melts at a fast rate."
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Mars, 2002.
An exploration of the Martian terrain, with reference to the presence of water.
1,620 words (approx. 6.5 pages), 6 sources, APA, AU$ 63.95
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Abstract
This paper is introduces and discusses features of the Martian terrain suggesting that water, and possibly life, may have been present in the distant past or that water exists today under the planet?s surface. Conclusions about this suggestion are made at the end of the paper.
From the Paper
"The public?s fascination and with the red planet originated with Percival Lowell?s book, ?Mars,? published in 1895. Although Schiaparelli and others had discussed the possibility of Canals on Mars, Lowell?s drawings and his suggestion of intelligent life on Mars thrilled the public."
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The Climate of the U.S.A. and Canada, 2002.
A discussion of the climate of the U.S.A. and Canada, with respect to climate classifications, its effects on farming and other activities.
2,405 words (approx. 9.6 pages), 10 sources, APA, AU$ 89.95
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Abstract
This paper discusses how climate governs the entire ecological structure of the planet earth. The author examines how climate, in relation to the topography and latitudinal location, determines the vegetative types, the hydrology, soil, agriculture and various human activities.
From the Paper
?Climate represents a long term average of various weather features such as temperature and precipitation. The World Meteorological Organization uses 30-year averages to define climatological "normals" for these various features. Climate determines how resources such as water and vegetation are distributed and, until the onset of technology, climate also determined where people lived and worked. Many factors, such as topography, proximity to large bodies of water, and latitude affect a particular location's long-term climate. It is important to note that because a region's climatology is a 30-year average, significant year to year variability is likely. For example, a particular location may have a dry, warm winter one year and a record snowfall the next year.?
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The Ice Age and Climatic Change, 2002.
A look at this dramatic era from an ecological point of view with focus on Milankovitch's Theory of Climatic Change.
980 words (approx. 3.9 pages), 1 source, MLA, AU$ 41.95
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Abstract
An examination of Milankovitch's theory which links the climate to seasonal and latitudinal variations in the solar energy received by the Earth. Through this theory we are given a better understanding of this time period. Criticism of the theory is also discussed and problems analyzed.
From the Paper
"An ice age is a cool period in Earth history, where much of the Earth's land surface is covered by ice. What is most relevant here is that an ice age is defined by the lower temperatures, with the ice a symptom of this. An ice age then, can be defined as a period when climatic changes produce lower temperatures, which in turn cause the Earth to be covered by large sheets of ice."
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