greenhouse effect

We are ready to represent the best custom paper writing assistance that can cope with any task like greenhouse effect even at the eleventh hour. The matter is that we posses the greatest base of expert writers. Our staff of freelance writers includes approximately 300 experienced writers are at your disposal all year round. They are striving to provide the best ever services to the most desperate students that have already lost the hope for academic success. We offer the range of the most widely required, however, not recommended for college use papers. It is advisable to use our examples like greenhouse effect in learning at public-education level. Get prepared and be smart with our best essay samples cheap and fast! Get in touch and we will write excellent custom coursework or essay especially for you.

The greenhouse effect is an increase in the atmospheric temperature caused by increasing amounts of greenhouse gases. These gases act as a heat blanket insulating the Earths surface absorbing and trapping heat radiation which normally escapes from the earth. They include carbon dioxide, water vapor, methane, nitrous oxide, CFCs, and other halocarbons. The earths atmosphere goes through two processes constantly. Global cooling is the first process. This process uses the clouds which cover 60% of the earths surface to reflect 0% of the solar radiation. It also uses a sulfate haze, which is formed by sulfur dioxide from industrial sources that enter the atmosphere and react with compounds to form a high-level aerosol. These cool the atmosphere by blocking us from direct contact with the sun. The reflection of the sunlight is referred to as planetary albedo and contributes to the overall cooling. The second is the warming process. This is when light energy comes through the atmosphere and is absorbed by Earth and transformed to heat energy at the planets surface. The infrared heat energy then radiates upward into space. There the greenhouse gases found naturally in the troposphere absorb some of the infrared radiation. The gases insulate the Earth, but do eventually allow the heat to escape. Without these greenhouse gases the earth would be would C colder. Global temperature is a balance of the effects of the factors leading to global cooling, and warming. Unfortunately, increased emissions of greenhouse gases increase the warming process. For example, every kilogram of fossil fuels burned equals kilograms of carbon dioxide ( the mass triples because each carbon atom in fuel bond to two oxygen atoms, in the course of burning, and forms C0. ) 6 billion tons of fossil fuel carbon are burned each year adding 18 billion tons of C0 to the atmosphere. This has increase the carbon dioxide concentrations by 5% and has cause temperatures to increase more than 0.7 C over the last hundred years. We hope that the forests will act as a sink for carbon dioxide but instead they are a net source. This is because the forests are being cut and burned adding 1 to billion tons annually to the 6 billion tons of carbon already from industrial processes. Fortunately, the top 00 meters of oceans absorb most of the carbon dioxide emitted by burning fossil fuels. Other factors are known to increase the greenhouse effect. These factor are water vapor, methane, nitrous oxide, CFCs and other halocarbons. Water vapor is also a major factor in what has been called the supergreenhouse effect in the tropical Pacific ocean. Water vapor traps energy that has been radiated back to the atmosphere. The high concentration of HO vapor contributes significantly to the heating of the ocean surface and lower atmosphere in the tropical Pacific. Methane (CH4) is a product of microbial fermentative reactions and is also emitted from coal mines, gas pipelines, and oil wells. Methane is gradually destroyed, but it is added to the atmosphere faster than it can be broken down. Nitrous oxide (NO) can be found in biomass burning, chemical fertilizers, and fossil fuel burning. Nitrous oxide is more dangerous than some of the others because of its long residence time of 170 years. CFCs and other halocarbons are found in refrigerants, solvents, and fire retardants. Halocarbons have a greater capacity, 10 000 times, for absorbing infrared radiation, which is about 60% more, than CO. Although there is increase in the application of some of these gases, they will decrease in importance in the future leaving carbon dioxide as the primary dilemma. In 181, James Hansen of NASA invented a model with an ability to track known temperature changes and link them to past and future carbon dioxide levels as well as global temperature changes. The model suggested the combination of CO and volcanic emissions was responsible for most of the observed changes in temperature during the 180s. A trend of warming of more than 0.7 C coincides with an increase of 5% in carbon dioxide. Two major impacts of greenhouse effect are regional climatic changes and a rise in sea levels. A climactic change will lead to variations in temperature. Scientists expect more precipitation which may prove to be disastrous for North America by flooding rivers and lakes. A rise in the sea levels is anticipated because of an increase in thermal expansion and the melting of ice caps and ice fields. Like extensive rainfalls, a rise in the ocean will flood lakes and rivers covering land and may someday bury continents. In order to control the effects of global warming we must first admit that its occurring, then take steps to end it. We must stop burning the trees and not replacing them. Most importantly, we must stop polluting the air.



Mind that the sample papers like greenhouse effect presented are to be used for review only. In order to warn you and eliminate any plagiarism writing intentions, it is highly recommended not to use the essays in class. In cases you experience difficulties with essay writing in class and for in class use, order original papers with our expert writers. Cheap custom papers can be written from scratch for each customer that entrusts his or her academic success to our writing team. Order your unique assignment from the best custom writing services cheap and fast!