The Greenhouse Effect Essay Summary Example For Students

The Greenhouse Effect Essay Summary The Greenhouse EffectThe greenhouse effect, in environmental science, is a popular term forthe effect that certain variable constituents of the Earths lower atmospherehave on surface temperatures. These gaseswater vapor (H2O), carbon dioxide(CO2), and methane (CH4)keep ground temperatures at a global average of about15 degrees C (60 degrees F). Without them the average would be below thefreezing point of H20. The gases have this effect because as incoming solarradiation strikes the surface, the surface gives off infrared radiation, or heat,that the gases trap and keep near ground level. The effect is comparable to theway in which a greenhouse traps heat, hence the term. We will write a custom essay on The Greenhouse Effect Summary specifically for you for only $16.38 $13.9/page Order now Environmental scientists are concerned that changes in the variablecontents of the atmosphere (particularly changes caused by human activities)could cause the Earths surface to warm up to a dangerous degree. Even alimited rise in average surface temperature might lead to at least partialmelting of the polar ice caps and hence a major rise in sea level, along withother severe environmental agitation. An example of a runaway greenhouse effectis Earths near-twin planetary neighbor Venus. Because of Venuss thick CO2atmosphere, the planets cloud-covered surface is hot enough to melt lead. Water vapor is an important greenhouse gas. It is a major reason whyhumid regions experience less cooling at night than do dry regions. However,variations in the atmospheres CO2 content are what have played a major role inpast climatic changes. In recent decades there has been a global increase inatmospheric CO2, largely as a result of the burning of fossil fuels. If themany other determinants of the Earths present global climate remain more orless constant, the CO2 increase should raise the average temperature at theEarths surface. As the atmosphere warmed, the amount of H2O would probablyalso increase, because warm air can contain more H2O than can cooler air. Thisprocess might go on indefinitely. On the other hand, reverse processes coulddevelop such as increased cloud cover and increased absorption of CO2 byphytoplankton in the ocean. These would act as natural feedbacks, loweringtemperatures. In fact, a great deal remains unknown about the cycling of carbonthrough the environment, and in particular about the role of oceans in thisatmospheric carbon cycle. Many further uncertainties exist in greenhouse-effectstudies because the temperature records being used tend to represent the warmerurban areas rather than the global environment. Beyond that, the effects of CH4,natural trace gases, and industrial pollutantsindeed, the complex interactionsof all of these climate controls working togetherare only beginning to beunderstood by workers in the environmental sciences. Despite such uncertainties, numerous scientists have maintained that therise in global temperatures in the 1980s and early 1990s is a result of thegreenhouse effect. A report issued in 1990 by the Intergovernmental Panel onClimate Change (IPCC), prepared by 170 scientists worldwide, further warned thatthe effect could continue to increase markedly. Most major Western industrialnations have pledged to stabilize or reduce their CO2 emissions during the 1990s. The U.S. pledge thus far concerns only chlorofluorocarbons (CFCs). CFCs attackthe ozone layer and contribute thereby to the greenhouse effect, because theozone layer protects the growth of ocean phytoplankton. would probably alsoincrease, because warm air can contain more water than can cooler air. Thisprocess might go on indefinitely. On the other hand, reverse processes coulddevelop such as increased cloud cover and increased absorption of CO2 byphytoplankton in the ocean. These would act as natural feedbacks, loweringtemperatures. Science

Plan for Project Implementation

Plan for Project Implementation Setting and Room Arrangement Due to the fact that the target audience include students originating from various cultures, it is highly important to invite all students into discussion with leaving no one to be unrecognized. In this respect, a cross-cultural approach should be introduced while forming class groups.Advertising We will write a custom essay sample on Plan for Project Implementation specifically for you for only $16.05 $11/page Learn More In groups with students from different countries, there is a higher probability of exchanging experiences and acquiring knowledge on the specifics of copyright laws in India, Asia, and Japan. However, each lesson should be aimed at discussing a common topic that would reconcile all presented cultures. The best solution here will be analyzing the following topics: Introduction to copyright law; Basics definition of copyright laws; History and origins for copyright law; Discussing existing agreements, type of lic ensing, and assignments; Studying copyright with regard to traditional knowledge, economic development and authors as presented in the considered countries; Disparities between American copyright laws and the one established at the international level In addition to the above, the final lesson should focus on assessing students’ knowledge and experience in implementing and using U. S. copyright laws. The teacher’s main task here is to make students quickly accommodate to the mode of learning and learn the specifics of sites usage. Increase in motivation can also be achieved if students get more involved in the problems they should overcome as well as objectives teacher pursue. Audio-visual media platforms needed The project implementation should start with working out specific training courses for international students to freely utilize the created site. Particular emphasis will be placed on identifying the definition of copyright laws, reasons for studying this issu es, and consequences for copyright law infringement. This matter will be considered from an educational perspective to increase students’ academic awareness. The training course will be placed on the website so that everyone can access it freely. The lessons designed will involve overview of presentations, video, and audio materials and, therefore, students will need specific software enabling them to look through these lessons and presentations. In order to spark students’ interest in the subject and motivate them to learn more about this issue, online thematic forums will be organized where students will be able to discuss the most burning issues dedicated to the problem of copyright laws.Advertising Looking for essay on education? Let's see if we can help you! Get your first paper with 15% OFF Learn More Such an option will enable students to expand their knowledge on specific issues, gain experience through engaging in activities connected t o lifetime experience. In addition, cross-examination and online communication will also contribute to students understanding of disparities among copyright systems in different countries. It should be stressed that the usage of online presentations involves specific knowledge on building charts, diagrams, and tables. These principles should be conceived before proceeding with the actual study. Enhancing Students’ Computer Knowledge and Eliminating Problems with Knowledge Management In order to better handle the site designed for learning the basics of copyright laws, students should also acquire sufficient skills in managing software and other computerized equipment. Computer assisted instruction is crucial for drill-and-practice activities and for solving problems connected with computer technology. Advanced knowledge on communication technology will help students to facilitate their study and interaction with teachers and their peers. While evaluating knowledge management techniques, teachers should pay close attention to gaps each student has in terms of their level of understanding of computer essentials.

Rousseau and the Social Contract Tradition Essay

Rousseau and the Social Contract Tradition - Essay Example The major theme of Rousseau’s writings is based on this notion since he notes the way man’s own freedom has been compromised by the Civil Society’s formation. Rousseau favors the development of social contract that cannot be permeated by the stakes instead of social contract tradition. The main goal should be to promote human equality and individual liberty. Nevertheless, such a social contract can only be realized if the private interests are denounced by the members of society and if they commit to the general will’s cordons. It lies within the general will’s realms that Rousseau associates the legitimacy of political authority only with its alignment with the people’s desires. Any men who follow the general will’s principles cannot require their fellow men into activities which might betray their conscience. All men are free but they can obtain freedom only by following the laws which implement harmony and order in the society. In a ddition, Rousseau asserts that people should make conventions that develop lasting concords between social order and the liberty of people. It can be said that the propositions of Rousseau are sound philosophically. He has made realistic and reasonable suggestions. However, Rousseau has not accurately given examples of general will which leaves men with almost no option, but to advance the tradition of the social contract for progress. This is the reason why democracy still sustains even though he might not have chosen democracy for governance.

How can high schools better educate students imaginations Essay - 1

How can high schools better educate students imaginations - Essay Example Educating students’ imaginations through the different initiatives forms a firm foundation for creativity and generation of improved ideas. This paper elaborates how having a class pet would improve students’ imaginations in school and later on in life i.e. expanding their imaginative skills could mark their cultivation as a habit and application in daily tasks of the world. Pets or animals make good companions for man and the relationship creates a different understanding of everything as compared to the way humans express their interactions. Introducing a class pet creates a unique chance that educators can utilize for edification through fun and augmented interaction. Some student’s might argue that they are too old to pet but it is because they do not comprehensively understand the advantages of introducing a rabbit, cat or hamster as part of the curriculum. Learning works better when students cultivate a candid interest of the environment and its components thus introducing a pet in the English or art class enhances the overall experience. The idea of class pet provides a wide platform for educating students’ imagination inside and outside the classroom. For instance, the teacher can ask the students to research on the class pet, which sparks an interest in reading various books on the pet and can share with their age-mates. Upon researching, the teacher can also request the students to write an article on their pets after everyone spending a day with it. The description of their experience enhances the imaginative skills, especially if the teacher participates more by giving each student a particular aspect to focus on in their description. Additionally, such a task combines English and imaginative skills development. Definitely, the idea of a class-pet for better educating students’ imagination has its challenges with the main being resentment from students in the classroom. Definitely, some of the

Are Teen Age Years The Best Essay Example for Free

Are Teen Age Years The Best Essay Are Teenage year the best of your life? The teenage years are considered the best years of your life that is what magazine. Im going to tell you why they are not. First you are always looked at to succeed by your parents, the lack of freedom we get and last but not least we are considered lairs and criminal among todays society. One of the disadvantages of being a teenager is that we are always looked to succeed in school so you can do and be better then them. They also say if we fool around the future for us is going the extinguished. Other disadvantage of being a teen is the lack of freedom we get. Sure we might live in a free country but are we all free? The freedom that Im talking about is staying up late, working and school. Staying up late I dont know about you but I have to get home before my parents I cant even be in front of my house to the wee hours of the morning. Working is another one we another one we cant work on weekdays because my Dad says it will effect my school work how will he know if he doesnt give it a chance. School is the worst of all we cant even wear earrings because its not part of the uniform I understand that but the shaving is just stupid how could you order someone to do something that comes in naturally. It is like telling someone you have to get a hair cut every week. Its violating our freedom of expressing. The worst part of being a teenager is that we are considered lairs and criminals among our society. For example if a bunch of teens walk into a variety store the owners automatically think we are going to rob them but the only thing we want is a little snack. The other thing is lying adults never believe teens why you ask? I dont really know. For example a teacher and a student get into an argument and its the teachers fault the principle is going to believe the teacher because they dont tell lies. So with the facts that I just stated that is why I have to say the teenage years are not what people say they are.

Description, Visual and Auditory Clues, and Imagery in A Clean, Well-Lighted Place, By Hemingway :: A Clean Well-Lighted Place Essays

Description, Visual and Auditory Clues, and Imagery in A Clean, Well-Lighted Place "Each night I am reluctant to close up because there may be some one who needs the café (251)." The waiter who speaks these words, in a Clean Well-Lighted Place by Ernest Hemingway, realizes that his café is more than just a place to eat and drink. The main character of this story is an elderly, deaf man who spends every evening at the same café until it closes. Setting is used to help the reader understand the old man's loneliness and the comfort he receives from the café. Hemingway uses direct description, visual and auditory clues, and sense imagery to establish the setting and to develop this understanding. Hemingway uses direct description at the very beginning of the story to establish the setting of the story for the reader. "It was late and everyone had left the café except an old man who sat in the shadow the leaves of the tree made against the electric light. In the day time the street was dusty, but at night the dew settled the dust...(249)." This conveys a sense of solitude and peace which surrounds the old man. More importantly, this description gives the reader a feeling for the loneliness which has engulfed the old man. The use of shadows and light, along with solitude, gives the sense of loneliness. The visual and auditory clues the author uses are necessary in understanding why the old man continues to return to the café each night. "Turning off the electric light he continued the conversation with himself. It is the light of course but it is necessary that the place be clean and pleasant. You do not want music. Certainly you do not want music (251)." It is important that the café be well-lighted to counteract the old man's dark and lonely life. In addition, music would only be a distraction from his thoughts and a disruption of the solitude which quiet brings. Finally, through Hemingway's use of sense imagery, the reader is able to understand why the old man visits the café at night. "...the old man liked to sit late because he was deaf and now at night it was quiet and he felt the difference (249)." Evening brings a sense of serenity to the old man. The day time distractions, even for a deaf man, are replaced by evening solitude.

Manufactures car alarms Essay

Costs: Materials: direct, variable1,600 Labour: direct, variable960 Labour: indirect, fixed280 Other production overheads: variable400 Other production overheads: fixed640 Selling overheads: variable480 Selling overheads: fixed360 Distribution overheads: variable280 Distribution overheads: fixed120 Administration overheads: fixed600 (5,720) Net profit for the year1,480 Anhad is planning next year’s activity and its forecasts for the year ended 31 October 2014 are as follows: 1.A reduction in selling price per car alarm to RM8 per alarm is expected to increase sales volume by 50%. 2.Materials costs per unit will remain unchanged, but 5% quantity discount will be obtained. 3.Hourly direct wage rates will increase by 10%, but labour efficiency will be unchanged. 4.Variable selling overheads will increase in total in line with the increase in sales revenue. 5.Variable production and distribution overheads will increase in line with the 50% increase in sales volume. 6.All fixed costs will increase by 25%. You are required to do the following: a)Prepare a budgeted profit statement for the year to 31 October 2014 showing total sales and marginal costs for the year and also contribution and net profit per unit. b)Calculate the break-even point for the two years and explain why the  break-even point has changed. Comment on the margin of safety in both years. c)Calculate the sales volume required (using the new selling price) to achieve the same profit in 2014 and in 2013. d)A director comments that ‘with these figures, all we have to do to work out our budgeted profit is to multiply the net profit per unit by the units we want to sell†. Why is this statement incorrect? Satnam Berhad is considering diversifying their business activities and they are currently reviewing two proposals. Proposal A is to launch their own television station whilst Proposal B is a joint venture with Kaboor Limited to launch a satellite that would enable the African region to receive advertisements for both company’s products. The available data is follows: Proposal A – TV Station Initial set-up costs: RM250 million Annual running costs: RM100 million Estimated life of project: 5 years Value of assets released at the end of the project: RM40 million Increased sales as a result of advertising products: RM60 million in the first year, growing cumulatively by 50% each year for the following four years. Project B – Satellite Initial set-up costs: RM700 million Annual running costs: RM50 million Value of assets released at the end of the project: RM10 million (Note: all the above to be shared 50/50 with Kaboor Limited) Estimated life of the project is 6 years. Increased sales for Satnam Berhad as a result of advertising their products in the African continent: RM80 million in the first year, growing cumulatively by 20% each year for the following five years. Funding for both projects would be at a cost of capital of 6%. Relevant discount factors at 6% p.a. are: Year Cumulative 10.9430.943 20.8901.833 30.8402.673 40.7923.465 50.7474.212 60.7054.917 Required: a)Using the net present value method of investment appraisal, critically evaluate the two proposals and make your recommendation to Satnam Berhad. b)What other considerations should Satnam Berhad take into account in deciding which Project to pursue?