Global Warming Essay For School Students Pdf

Global warming refers to the rise in surface temperature of the earth due to the green house effect created by green house gases. Global warming is a big environmental and social issue all over the world which everyone must know especially our kids and children as they are the future. Let your kids and school going children learn about this environmental issue, its causes and prevention methods using these essay on Global warming, written in English language using very simple words for students use. You can select any global warming essay given below:

Essay on Global Warming

Global Warming Essay 1 (100 words)

Global warming is a major atmospheric issue all over the world. Our earth’s surface becoming hot day by day by trapping the sun’s heat and rise in the level of atmospheric carbon dioxide. The bad effects of it increasing day by day and causing major problems to the living of human being. It has become one of the subjects of big social issues which need social awareness to a great level. People should know its meaning, causes, effects and solutions to solve it immediately. People should come forth together and try to solve it in order to save life on the earth.

Global Warming Essay 2 (150 words)

Global warming is a big issue of the atmosphere on the earth which cause continuous rise in the surface temperature of the Earth. It has been estimated that in next 50 or 100 year the temperature of earth would be increased to a great level which would create big problem of living on earth. The highly known and most basic cause of increasing the Earth’s temperature is continuous rise in the atmospheric carbon dioxide.

Rise in the carbon dioxide level is the use fossil fuels like coal and oil, deforestation (cut down of plants) by the human beings on Earth. Decreasing number of the plants on the earth increases the level of carbon dioxide, as plants are the main source of the using carbon dioxide released by the human being (as a by-product of respiration) and other means. Increasing level of Earth’s temperature creates lots of problems like sea level becomes hotter and higher, glaciers melt, flood, strong storms, lack of food, diseases, death, etc.

Global Warming Essay 3 (200 words)

Global warming is the steady and continuous rise in the level of earth temperature. Out earth surface is becoming hotter day by day just because of some unnoticeable habits of human beings all across the world. Global warming has become the most worrying threat for the earth’s atmosphere as it is reducing the life possibilities on the earth day by day through a continuous and steady declining process.

Before planning the solutions of the global warming, we must think about the causes and effects of it on the atmosphere in order to get sure that we are in right direction of getting full relief from this issue. The continuous warming of the earth surface is the increasing emission of CO2 in the environment. However, the increasing level of CO2 is caused due to many reasons like deforestation, use of coal, oil, gas, burning of fossil fuels, burning of gasoline for transportation, unnecessary use of electricity, etc which in turn causes rise in earth temperature. Again it becomes the reason of rising sea level, occurrence of flooding, storms, cyclone, ozone layer damage, changing weather patterns, fear of epidemic diseases, lack of food, death, etc. We cannot blame any single entity for this as each and every human being is responsible for the increasing threat of global warming which can be solved only by the global awareness and kind efforts of everyone.


Global Warming Essay 4 (250 words)

Global warming is a steady process of continuous rise in the level of Earth temperature. Global warming has become one of the biggest problems faced by the world now. It is believed that increasing level of carbon dioxide gas and other greenhouse gases on the earth are the main reasons of heating the atmosphere of earth. If it is not noticed and solved immediately by the efforts of all countries worldwide, it would boom its effects and cause end of life on the earth a day.

Its threatening effects are increasing day by day and creating danger for human life. Global warming is the main and only reason of rising sea level, flooding, changes in weather patterns, storms, cyclone, epidemic diseases, lack of food, death, etc. The only solution to solve the issue of global warming is the individual level social awareness. People must be aware of its meaning, cause, bad effects and other things about global warming to get it eradicated from worldwide and make the possibilities of life on earth forever as usual.

People should stop producing C02 by just stopping their bad habits such as stop the use of oil, coal and gas, inhibit cutting plants (as they are main source to absorb carbon dioxide and produce oxygen), minimize the use of electricity, etc. Just small changes in everyone’s life all over the world, we can be able to stop the huge negative changes in the atmosphere by lessening the effects of global warming and even stop it a day.

Global Warming Essay 5 (300 words)

Global warming is the continuous rise in warming of the earth’s surface due to the increased level of carbon dioxide gas in the environment. Global warming has become a big issue which need to be solved by the positive initiation of countries all over the world. As gradual increase in the earth temperature calls various threats as well as makes the existence of life hard on this planet. It enhances the gradual and permanent changes in the earth’s climate and thus affecting the nature’s balance.

Rise in the CO2 level on the earth impacts the human life to a great level through continued heat waves, sudden occurrence of strong storms, unpredictable and unexpected cyclone, damage to ozone layer, floods, heavy rain, drought, lack of food, diseases, death etc. It has been researched that increasing emissions of CO2 in the atmosphere is because of the nonstop burning of fossil fuels, usage of fertilizers, cutting forests, extra use of electricity, gases used in refrigerator etc. According to the statistics, it has been noted that by 2020 global warming may boom its bad effects if it is not taken under control as CO2 emissions are increasing continuously.

The increasing level of CO2 causes greenhouse effect on the earth in which all the greenhouse gases (water vapour, CO2, methane, ozone) absorbs thermal radiation, which in turn re-radiated to all directions and come back to earth surface causing increase in the temperature of earth surface and lead to global warming.

In order to stop the life threatening effects of the global warming, we should take a permanent break from all the bad habits causing increase in the CO2 level and other green house gases leading to the green house effect and then earth surface warming. We should stop deforestation, lessen the use of electricity, stop the burning of wood, etc.


 

Global Warming Essay 6 (400 words)

Global warming is the big environmental issue we are facing today as a greatest challenge which we need to get it solved permanently. In fact, global warming is the continuous and steady process of increasing in the temperature of earth surface. It needs to be discussed widely by all countries worldwide to stop the effects of it. It has impacted the nature’s balance, biodiversity and climatic conditions of the earth over decades.

Green house gases like CO2, methane are the main reasons of increasing the global warming on the earth which directly impacts the rising sea levels, melting ice caps, glaciers, unexpected changing climate which represents life threats on the earth. According to the statistic, it has been estimated that earth temperature has increased to a great level since mid 20th century due to the increased atmospheric greenhouse gas concentrations globally because of the increased demand of the human living standard.

It has been measured that year like 1983, 1987, 1988, 1989 and 1991 as the warmest six years of the past century. This increasing global warming calls the unexpected disasters on the earth like flood, cyclones, tsunami, drought, landslides, ice melting, lack of food, epidemic diseases, death etc thus causing imbalance to the nature’s phenomenon and indicating end of life existence on this planet.

Increasing global warming lead to the more water evaporation from earth into the atmosphere, which in turn become a greenhouse gas and again causes rise in the global warming. Other processes like burning of fossil fuels, use of fertilizers, rise in other gases like CFCs, tropospheric ozone and nitrous oxide are also the reasons of global warming. The ultimate causes of such reasons are the technological advancement, population explosion, increasing demand of industrial expansion, deforestation, priority towards urbanization, etc.

We are disturbing the natural processes through the deforestation and use of technological advancement like global carbon cycle, making hole in ozone layer, etc and allowing the UV rays to come on earth thus increasing global warming. Plants are the ultimate source of removing extra carbon dioxide from the air and making it in balance thus by just stopping the deforestation and enhancing people for more plantation we can get success of reducing the global warming to a great level. Controlling the population growth is also a great hand towards reducing the global warming all through the world as it lessens the use of destructive technologies on the earth.


 

Global Warming Essay 7 (800 words) (Long Essay)

What is Global Warming

Global warming is a gradual process of heating of earth’s surface and whole environment including oceans, ice caps, etc. The global rise in atmospheric temperature has been clearly noticed in the recent years. According to the Environmental Protection Agency, in the past century there is increase in the earth’s surface average temperature by around 1.4 degree Fahrenheit (means 0.8 degrees Celsius). It has also been estimated that global temperature may increase by another 2 to 11.5 degrees F in the next century.

Causes of Global Warming

There are many causes of the global warming, some are natural causes and some are human made causes. The most important cause of global warming is greenhouse gases which are generated by some natural processes as well as human activities. The increase in the level of green house gases has been seen in the 20th century because of the increasing population, economy and use of energy. Increasing demand of industrialization in the modern world to fulfill almost each need is causing the release of variety of green house gases through many industrial processes in the atmosphere.

The release of carbon dioxide (CO2) and sulphur dioxide (SO2) gas has been increased in the recent years by 10-fold. The release of carbon dioxide gas varies according to the natural and industrial processes including photosynthesis and oxidation cycles. Methane is another green house gas release in the atmosphere by the anaerobic decomposition of organic materials. Other greenhouse gases are like oxides of nitrogen (nitrous oxide), halocarbons, chlorofluorocarbons (CFCs), chlorine and bromine compounds, etc. Such green house gases get collected to the atmosphere and disturb the radiative balance of atmosphere. They have capability to absorb heat radiations and cause warming of the earth surface.

Another cause of global warming is ozone depletion means declination of ozone layer over Antarctica. Ozone layer is declining day by day by increasing release of chlorofluorocarbon gas. It is a human generated cause of global warming. Chlorofluorocarbon gas is used at many places as aerosol propellants in the industrial cleaning fluids and in the refrigerators, the gradual release of which causes declination to the ozone layer in the atmosphere.

Ozone layer causes protection to the earth surface by inhibiting the harmful sun rays to coming to the earth. However, gradually declining ozone layer is the big indication of increasing global warming of the earth surface. Harmful ultraviolet sun rays are entering to the biosphere and get absorbed by the green houses gases which ultimately increase the global warming. According to the statistics, it has been estimated that the size of ozone hole has been twice the size of Antarctica (more than 25 million km2) by 2000. There is no any clear trend of ozone layer declination in the winter or summer seasons.

Presence of various aerosols in the atmosphere is also causing earth’s surface temperature to increase. Atmospheric aerosols are fully capable to scatter (causes cooling to the planet) and absorb (makes air warm) the solar and infrared radiations. They are also capable to change the microphysical and chemical properties of the clouds and possibly their lifetime and extent. The increasing amount of aerosols in the atmosphere is because of human contribution. Dust is produced by agriculture, organic droplets and soot particles are produced by biomass burning, and aerosols are produced by the industrial processes through the burning of wide variety of products in the manufacturing process. Various emissions by means of transport generate different pollutants which get converted to the aerosols through many chemical reactions in the atmosphere.

Effects of Global Warming

The effects of global warming have been very clear in the recent years because of increasing sources of global warming. According to the U.S. Geological Survey, it has been recorded that there were 150 glaciers located in the Montana’s Glacier National Park however because of increasing effect of global warming, only 25 glaciers are left. Huge level climate changes are making hurricanes more dangerous and powerful. Natural storms are getting so strong by taking energy from temperature difference (of cold upper atmosphere and warm Tropical Ocean). Year 2012 has been recorded as hottest year since 1895 and year 2013 together with 2003 as the warmest year since 1880.

Global warming causes lot of climate changes in the atmosphere such as increasing summer season, decreasing winter season, increasing temperature, changes in air circulation patterns, jet stream, rain without season, melting ice caps, declining ozone layer, occurrence of heavy storms, cyclones, flood, drought, and so many effects.

Solutions of Global Warming

Many awareness programmes and programmes to reduce global warming have been run and implemented by the government agencies, business leaders, private sectors, NGOs, etc. Some of the damages through global warming cannot be returned by the solution (like melting of ice caps). However, we should not get back and try everyone’s best to reduce the effects of global warming by reducing the human causes of global warming. We should try to reduce the emissions of greenhouse gases to the atmosphere and adopt some climate changes which are already happening for years. Instead of using electrical energy we should try using clean energy or energy produced by solar system, wind and geothermal. Reducing the level of coal and oil burning, use of transportation means, use of electrical devices, etc may reduce the global warming to a great level.

 

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Table of Contents

  1. Abstract
  2. Body of Paper
    1. Introduction to Global Warming
    2. Permafrost
    3. Ice Melting
    4. Animal species Adapting and Integrating
    5. Overview of Barrow
    6. Solutions to the Problem
  3. Bibliography

Abstract

Global warming is effecting all of the world today and the affect is not a good one. Melting of ice caps, permafrost, and the overall warming of the world cause major problems all over; these problems affect everyone everywhere. Melting permafrost causes some of the most damage of any other factor that global warming affects. The heaving of permafrost damages roads, homes, and other buildings. Global warming also affects the melting of icepacks that many animal species rely on for shelter and/or hunting grounds. The loss of these icepacks causes a loss of subsistence food that the natives rely on for their main food source.

The problem we will address discusses the effect of melting permafrost on various forms of infrastructure. We focus on homes and roads because those affect many people personally. Solutions for the problems to home foundations include: building a crawl space, hiring a certified contractor, and finding more stable ground to build upon.

Solutions to the problem of upheaval in roads can be solved by: thermal piles with radiator tips and insulators such as rock and foam panels under roads. The only global solution available is to stop the green house emission now. The affect of halting emissions will not be seen until many years down the road, but if we don't stop them, then the global warming situation will never be solved.

The problem of global warming is not something that can be solved in a finger snap; it will take many years to fix the damage that we have done. Stopping the production of green house gases now will help greatly in the future.

Body of Paper

Introduction to Global Warming

Global warming is affecting the world at an alarming rate. The average temperatures of the world over the past 100 years have risen 0.6 ° C (about 1 ° F). The temperatures haven't just been rising at an average rate each year; they are increasing exponentially. The Arctic Climate Impact Assessment has proven that global warming is a danger that needs to be dealt with now and that the global warming crisis is aggravated even further by human activity (Berner etc. al., 2004).

The Arctic provides important natural resources to the rest of the world; these resources would be greatly affected by the global warming crisis (Berner etc. al., 2004). Areas where water is prevalent in its frozen state are affected the most by the rising temperatures (Armstrong). Arctic areas, including Alaska , have undergone the greatest temperature increases of any other area of the world. These temperatures have risen almost 6 E C, unlike rest of the world's average 0.6 degrees C increase.

The Arctic region affected by global warming includes the town of Barrow, Alaska. Barrow is considered to be the northern-most population in North America. There are about 4,400 people living in Barrow, 68 % being Alaskan natives. The Arctic Climate Impact Assessment has stated that Barrow's average temperatures have risen 2.5-3 ° C (4 E F) in the past thirty years alone (Handwerk, 2004). Global warming affects the indigenous peoples in many ways. The most obvious way that it affects them is through the food supply. Native Alaskans depend on hunting polar bear, walrus, seal, and caribou for subsistence and the preservation of their culture (Impacts of a Warming Arctic, 2004). Another fairly obvious way that the global warming affects the people of Alaska is through the melting of permafrost. Melting permafrost causes the sinking of homes, roads, and other infrastructures. The damage that the permafrost causes to roads alone costs the state almost 33 million dollars every year ( http://www.betterroads.com/ ).

Permafrost

Permafrost is soil that remains at or below 0 ° C continuously for at least two consecutive years. Instead of being defined by moisture content, overlying snow cover, or location, permafrost is defined and characterized by temperature. Permafrost consists of several frozen soils ranging from gravel to clay (Heidorn, 2004). The ability for the water to move within the permafrost enables the water to migrate and accumulate, forming large bodies of ice called ice lenses (Stidger, 2001).

There are two main types of permafrost. Continuous permafrost does not thaw at all during the year. Discontinuous permafrost's upper layers thaw during the warm seasons (Glossary, 2004). Distribution of different permafrost types is shown in Figure 1. The continuous is located farther north than the other two types because the temperatures are cooler. Discontinuous is not actually permafrost, but rather a frozen soil formation because is does not meet the exact definition of permafrost. Continuous permafrost has a top layer called the active layer which thaws every year. The melting of this ice-rich permafrost is extremely harmful to the earth's surface. This has raised concerns for the stability of roads and other various structures, especially in the areas located in the Northern region of North America (Impacts of permafrost).

The idea of whether or not the temperature change in Alaska is being caused by greenhouse emissions or are raising naturally has been a great debate between many scientists and politicians around the world. Currently, our government is remaining quite ignorant to the problems that global warming causes and the idea that we are the cause of this problem. The mean temperatures have risen by 5 °F in summer and 10 °F
in winter since the 1970's (Egan, 2002).

Organic material in thawing permafrost decays rapidly, releasing large quantities of carbon dioxide and methane. Methane and carbon dioxide are greenhouse gases, so the releasing of the gases makes the global warming worse and it will continue to get worse the more the permafrost thaws. If the melting of permafrost continues, the permafrost regions could change from a global carbon sink to a major source of carbon. This, in turn, would act as a positive feedback loop to global climate warming (Impacts of permafrost).

The melting of permafrost has caused many problems. Currently there has been an increase in wave amplitude. This is being caused by an increase in the amount of fetch off the sea. The larger waves are causing a problem for the whale hunters. The State of Alaska Bureau of Land Management found that over 50 percent of the native's diet depends upon whaling (http://www.ak.blm.gov/).

Another problem caused by permafrost melting is an increase in coastal erosion. A study done by the INSTAAR, CRIES, and AEROSPACE program at the University of Colorado found the costal erosion rates from 1948 to 2002. The study found that that the average costal erosion over the last five decades has been 20.6 meters. Figure 2 shows an overhead view of Barrow, the red line represents the coast in 1948. The study found the average coastal erosion rate in Southwest Barrow to be .48 meter per year, the average costal erosion rate in Barrow is .92 meter a year. Figure 3 shows the coast in 1948 in Southwest Barrow and Barrow and its yearly erosion rate.

Another dilemma occurring in Barrow is the increase of east and west return winds. A study done by Amanda Lynch and Ronald Brunner found the expected increase of return winds in the next 100 years. The current average return wind is 27 mile per hour. The projected return wind in 100 years is expected to be about 45 mile per hour. Figure 3 show the expected return winds.

Another problem that could occur is the increase chance of flooding. A study performed by Amanda Lynch and Ronald Brunner found that with the expect return wind increase and current coastal erosion rate that is a flood were to occur the damage would be significant. Figure 4 shows a house in Barrow being carried out to sea in the October flood of 1963.

Another set back to Barrow is the thawing of ice roads. Ice roads allow the oil companies to move about the tundra. Many people of the community of Barrow depend on jobs with these oil companies. A study performed by the Alaska State Department of Energy found the days that the ice roads could be used in 1970 to 2002. In 1970 the ice roads could be used for 200 days; in 2002 the ice roads could only be used for 103 days. That calculates to an average lose of three days a year.

Ice Melting

Rising temperatures have a dramatic impact on Arctic ice, which serves as a kind of "air conditioner" for the whole world. Since 1978, the area covered by Arctic sea ice has decreased by almost nine percent each decade (Handwerk, 2004). Arctic max sea ice has been melting earlier and earlier since the Little Ice Age, which began in the 1500's and ended in the 1850's (Glacier Change in the Upper Skagit River Basin). The total ice cover season is 16 days shorter then it was in 1850. The melt and has lengthened at a rate of 5.3 days (8%) per decade during that time. The western Arctic ice is warming at least twice as fast as the rest of the globe is. In the year of 2004, a 13.4% decline was reported. This is compared to the average of an 8% decline. The percentage of decline creates an issue because the decline usually recovers back to 8% after a higher decline year. The Arctic has not yet recovered from 2002's 15% decline. Every year in September, the sea ice decline is recorded. Mark Serreze of Snow and Ice Data Center: "We may soon reach a threshold beyond which the sea ice can no longer recover." (Woods, 1999). With the sea ice covering an area approximately the size of the U.S. , the reduction perdecade is equivalent to an area the size of Colorado and New Hampshire combined (Sturm et al., 2003). The reduction of these ice packs affects many animal species.

Animal Species Adapting and Integrating

Increased temperatures promote the invasion of foreign species and destroy the necessary habitats of native species. According to some scientists, the arctic invasion is already underway. Deeper seasonal thawing has led to migrating vegetation populations. Predictions show boreal forests moving as much as 550 kilometers northward over the next century (Climate Change, 2002), and the tundra is expected to shrink by almost two thirds, as it is replaced by invading plant species.

The diminished tundra will wreck havoc on grazing populations such as the musk oxen and the caribou. These species rely on the plentiful tundra vegetation to survive. Spring in the arctic has arrived so early that when the herds reach their calving grounds their main source of food has already gone to seed. The warming will also cause
the vegetation zones to shift significantly northward, reducing the amount of food available for the caribou. The decline in the vegetation could cause a large decline in the number of caribou and reindeer, thus threatening the well being of many native households,and undermining the cultural significance of hunting (Impacts of a Warming Arctic, 2004).

The expected affect of global warming on arctic ecosystems is astounding. Global warming will likely affect species at almost every level of the food chain, from plankton to polar bears. Arctic ecosystems already have a startlingly low number of species, and even small changes bring drastic results. According to Adam Markham, director of WWF's climate change campaign, "Arctic ecosystems are probably the most fragile and interdependent on earth" (Reindeer, 1996).

As temperatures rise, there is an increase in the thinning and retreating of Arctic ice packs, which provide habitat for many animal species. Habitat loss for some animals (such as: seal, walrus, and polar bear) results from increased ice melt.

Polar bears live and hunt on arctic sea ice. Polar bears feed almost exclusively on the seals that they hunt on the ice edge or through the pack ice itself. Studies show that the arctic ice has already decreased by about 40% (Maxwell, 1997) and future estimates go as high as 70% (Kirby, 2000). The summer ice-free period has lengthened as well. This leaves polar bears with less time on the sea ice to hunt for food and build up their body fat stores, and increased time on land where they must fast. Newborn bears are smaller than human babies, and blind. They require weeks of nurturing before they can leave their cave, but now there are several indications that an
increasing number of cubs, and even mothers, are found dead as they cannot breathe when the snow cave collapses due to global warming. If they do survive, the young are exposed to the frigid temperatures and they eventually die as well (Ice melting under the Feet of the Polar Bear). The losses of polar bear populations will not only affect the
people inhabiting the Arctic areas, but also significant consequences for the entire ecosystem that they occupy (Berner et. al., 2004).

Polar bears create a problem in Barrow. They lack the time needed to hunt on the ice, so they will travel into Barrow more and more. Although the locals of Barrow hunt the polar bears, they have to kill the ones that travel into their village. These murders take a lot of the sport out of the cultural hunts, and also create a mess, due to the fact that the bears dig through the community's trash.

Many seal species, such as the ringed, bearded, and ribbon seals, give birth to and nurse their young on the sea ice. The loss of the massive icepacks would force these seals to adapt to life on land. This stress would cause a decline in the seal populations and therefore affect the rest of the ecosystem as well (Berner et. al., 2004). This includes the native hunters who hunt the seal for subsistence as well as a cultural tradition.

Another organism, the bowhead whale, is important to the Inupiat Eskimos. These whales create a major cultural hunt among the community's natives. These whales travel yearly, along the northern coast of Alaska, to reach the Chuckchi and Beaufort Seas. In these areas the whales feed upon the booming populations of phytoplankton and zooplankton. With ice melting, the whales can travel further and further from shore. This allows them to reach many of the once isolated food stocks. This has given a rise to the bowhead whale's population.

Due to these melting ice caps, the local hunters are having many more troubles hunting the bowhead whale for subsistence and cultural tradition. One issue that contributes to this is that they can not reach the whales from shore any more. Another reason is the camps the hunters set up. They are on what was once a stable ice pack, but with an increase in ice melting, these ice packs that are camped upon collapse and crumble underneath the local hunters.

Barrow

The North Slope Borough provides many jobs for those living in the Barrow area. Many local businesses support oil field operations. These jobs are at great risk of being lost because of damage done to buildings and roads due to permafrost melting.

The thawing of permafrost has accelerated in recent decades, damaging buildings and infrastructures and causing public concern in many communities around the arctic slope. The existing infrastructures in northern regions are located in areas of high hazard thawing potential and will be at risk of damage and/or destruction if thawing continues on its current trend. Barrow is at risk for storm damage because the coast is eroding, causing many structures to become unsafe. The 4,500 inhabitants of Barrow are therefore at risk physically and economically if a strong storm occurs. Climatological factors that increase the probability of detrimental meteorological events include rising sea levels and thawing of permafrost. As permafrost thaws, many man-made structures are destroyed or damaged (Berner etc. al., 2004). Construction and maintenance of the infrastructure in the Arctic depends upon the climate.

A general contractor in Barrow noted that the depths at which pilings for structures must be set have increased by several feet over twenty years. Warming of permafrost before the actual thawing can greatly reduce the load capacity of pilings, creating significant problems for buildings and pipelines (Hinzman, 2004). Permafrost used to make a useful medium for foundation in these regions, but the melting is presently making it very dangerous to build a foundation in. This raises the challenge of preventing thawing of ice-rich permafrost in order to avoid slumping of buildings, pipelines, and dirt roadway (Berner/Hinzman, 2004).

Solutions to the Problem

There is no local solution to the global warming problem, but the community can take on alternate energy sources to do their part in the reduction of emissions.

Barrow currently uses natural gas.

Alternate energy sources:

1.) Solar Power – In Barrow, more solar energy falls on the roof of a house over a year than is needed to heat that house for the year.

2.) Wind Power – Wind power would be highly effective because the average wind speed in Barrow is 12.8 mph. Some windmills generate electricity atless than 5 cents/kWh. For a wind mill to work effectively the average wind speed of an area must be between 8 and 14 mph. Barrow's average wind speed is 12.8 mph, so Barrow would be a prime spot for this wind program.

3.) Larger Surf – Whaling is a mainstay of Barrow's Inupiaq Eskimos, and is becoming more dangerous. Bigger waves – small boats less viable on open water, harder to enter near shore (Charles Wohlforth, 2004). To help ease the problems of larger surf we would recommend a harbor for easier boat launching.

4.) Invading Species Moving Inland – "In a similar fashion, the red fox is heading north and can now be found in Arctic regions where winters have become less severe. That's bad news for the cold-hardy arctic fox, because it can't compete with its larger, more aggressive cousin."(www.wired.com)

ADF&G can monitor invading species, and their impact on food sources and competition with the indigenous arctic animals. Possible solutions after monitoring, depending on data: eliminate (animal control), relocation, rehabilitation programs, erosion.

Over the last 50 years, the average shore displacement was 20.6 meters, with an annual loss of 0.48 meters of the Barrow shoreline. To help ease the erosion of the banks, which can lead to flooding and loss of coast we recommend that the town of Barrow create an erosion protection program, similar to the Kenai Peninsula's, but adjusted for Barrow's individual needs.

5.) In order to decrease or stop global warming, the whole world will have to agree to two actions, mitigation and adaptation, that have been suggested by the ACIA for adjusting the globe's warming trend. Mitigation would involve the world's countries agreeing to reduce greenhouse gas emissions. Adaptation involves adapting to the plans implemented with mitigation, and would probably cause more economically stable countries to contribute more to less economically stable countries (Berner Et al, 2004). One idea for implementing mitigation would be for economically stable countries to agree and sign on to the Kyoto Protocol, which requires countries to reduce their greenhouse gas emissions (The Kyoto Protocol).

The warming of the Arctic regions affects everyone. It is our duty to help reduce the amount of global warming that takes place, and the only way we can do this is to stop production of green house gases now. If we wait to stop these emissions, it will take even longer for the world to heal itself.

Figures

Figure 1.

Distribution of permafrost. The solid line shows the approximate southern limit of contemporary permafrost. (www.usarak.army.mil/DPW/Alaska.asp)


Figure 2.

Overview of Barrow


Figure 3.

Costal erosions rates in Southwest Barrow and Barrow and the expect return wind increase.


Figure 4.

Permafrost upheavals damage roads.


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