The Battle to Save the Ozone Layer - CFC Hazards

The Battle to Save the Ozone Layer - CFC Hazards Ozone depletion is a crucial environmental problem on Earth. The growing concern over CFC production and the hole in the ozone layer is causing alarm among scientists and citizens. A battle has ensued to protect Earths ozone layer. In the war to save the ozone layer, and you may be at risk. The enemy is far, far away. 93 million miles away to be exact. It is the sun. Each day the Sun is a vicious warrior constantly bombarding and attacking our earth with harmful Ultra Violet radiation (UV). Earth has a shield to protect against this constant bombardment of harmful UV radiation. It is the ozone layer. The Ozone Layer is Earths Protector Ozone is a gas that is constantly formed and reformed in our atmosphere. With the chemical formula O3, it is our defense against the Sun. Without the ozone layer, our Earth would become a barren wasteland on which little to no life could exist. UV radiation causes a host of problems for plants, animals, and humans including dangerous melanoma cancers. Watch a short video clip on the ozone layer as it provides protection to Earth from harmful solar radiation. (27 seconds, MPEG-1, 3 MB) Ozone Destruction is Not All Bad. Ozone is supposed to break up in the atmosphere. The reactions taking place high in our atmosphere are a part of a complex cycle. Here, another video clip shows a close-up view of ozone molecules absorbing solar radiation. Notice the incoming radiation breaks apart ozone molecules to form O2. These O2 molecules are later rejoined to form ozone again. (29 seconds, MPEG-1, 3 MB) Is There Really a Hole in the Ozone? The ozone layer exists in a layer of the atmosphere known as the stratosphere. The stratosphere is directly above the layer that we live in known as the troposphere. The stratosphere is approximately 10-50 kilometers above the Earths surface. The diagram below shows a high concentration of ozone particles at about 35-40 km in altitude. But the ozone layer has a hole in it!†¦or does it? Although commonly nicknamed a hole, the ozone layer is a gas and cannot technically have a hole in it. Try punching the air in front of you. Does it leave a â€Å"hole†? No. But ozone CAN be severely depleted in our atmosphere. The air around the Antarctic is severely depleted of atmospheric ozone. This is said to be the Antarctic Ozone Hole. How is the Ozone Hole Measured? The measurement of the ozone hole is made using something called a Dobson Unit. Technically speaking, â€Å"One Dobson Unit is the number of molecules of ozone that would be required to create a layer of pure ozone 0.01 millimeters thick at a temperature of 0 degrees Celsius and a pressure of 1 atmosphere†. Lets make some sense of that definition... Normally, the air has an ozone measurement of 300 Dobson Units. This is equivalent to a layer of ozone 3mm (.12 inches) thick over the entire earth. A good example is the height of two pennies stacked together. The ozone hole is more like the thickness of one dime or 220 Dobson Units! If the level of ozone drops below 220 Dobson Units, it is considered to be a part of the depleted area or â€Å"hole†. Causes for the Ozone Hole Once in the stratosphere, UV radiation break apart the CFC molecules into dangerous chlorine compounds which are known Ozone Depleting Substances (ODS). The chlorine literally slams into the ozone and breaks it apart. In the atmosphere a single chlorine atom can break apart ozone molecules again and again and again. Watch the video clip showing the break-up of ozone molecules by chlorine atoms.(55 seconds, MPEG-1, 7 MB) Have CFCs Been Banned? The Montreal Protocol in 1987 was an international commitment to reduce and eliminate the use of CFCs. The treaty was later amended to ban CFC production after 1995. As part of Title VI of the Clean Air Act, all Ozone Depleting Substances (ODS) were monitored and conditions were set forth for their use. Initially, the amendments were to phase out ODS production by the year 2000, but it was later decided to accelerate the phase out to 1995. Will we win the war? References: OzoneWatch at NASA Goddard Space Flight Center The Environmental Protection Agency

Write a review Essay Example | Topics and Well Written Essays - 500 words

Write a review - Essay Example At the same time, Titanic struck an iceberg in the ocean. Then, Rose’s fiancà © Cal Hockley discovered this romance and accuses Jack of theft of his gift to Rose. In condition of panic because of ship’s sinking, Rose and Jack were re-united and tried to survive together. But, in the cold Atlantic Ocean Jack sacrificed himself in order to save Rose. At the end, Rose is an old woman throwing Cal’s gift back to the ocean. So, this movie can be taken as a complex story that touches multiple sides of human life in genre of Romantic Drama. In this sophisticated context, in a given essay the play of main actors, plot twists and impressive ending are taken as criteria in evaluating this movie as one of the best among all Romantic Dramas. To start with, the main characters played by Leonardo DiCaprio and Kate Winslet are involved in the appealing love-story that emerged for the first time during the cruise on the ship titled Titanic. Actually, the relation between the couple develop in such a passionate and emotional way that it is impossible not to believe them. In addition, the fact that he is a poor risky worker trying to gain attention from a wealthy lady is also important in making their love even more sensual. Thus, the tandem created by DiCaprio and Winslet is really loved by public even nowadays. Moreover, they still are one of the best couples on the screen. In this context, the way these two actors presented the story between Jack and Rose assisted their future careers in Hollywood. Therefore, the play of main actors is on the highest level in Titanic. Furthermore, plot in the movie is highly interesting and full of unexpected difficulties caused by water and people. On the one hand, after liner had crashed into an iceberg everyone left almost with no chance to survive. On another hand, numerous deaths caused by Titanic were driven by human factor. In this context, an additional character Cal who wanted to marry Rose is one of such people.

Reflexive managers are required for contemporary organizations Essay

Reflexive managers are required for contemporary organizations. Discuss using examples - Essay Example Consequently, it can be affirmed that without proper strategies, companies will not able to gain a sustainable position in the market. In this regard, it is important that companies devise their objectives and strategies parallel to one another in an effective and efficient manner further enhancing the prospect for gaining utmost level of success. However, it will also be important to mention that proper execution of the strategies is also deemed to be quite vital in order to attain the benefits for the overall business. Contextually, the role of managers or management comes into being. Managers provide the ultimate guidance to the entire business from which it can move to the positive direction and yield beneficial results for the entire business. However, executing the plans of the business needs proper support from the various resources of the corporation which primarily include the human resources as well. Proper guidance to the human resources requires appropriate and innovative style of leadership from the managers (Nieuwenhuizen, 2007). Contextually, it is believed that reflexive style of leadership is quite vital as it is effective and efficient in the domain of influencing employees towards their work. In order to get a proper understanding in in this regard, the paper will provide a thorough discussion regarding whether reflexive managers are required in the contemporary organisations with the assistance of examples. Notably, the scenario of business activities has altered by a considerable extent in recent years owing to which companies have the need to develop diverse range of strategies so that they could be able to gain utmost level of efficacy and competitiveness in their operations. However, it is important to execute the plans of the business effectively in order to ensure maximum benefits from the strategies devised by the business. Contextually, the role of human resources of the business becomes quite significant

Suez Crisis Essay Example for Free

Suez Crisis Essay Lee states, ‘There was no internal split in the Conservative party’. Kilmuir agrees with this, and goes onto talk about, ‘Our most lost party workers, although dismayed by our handling of the situation were consumed with the hatred of the Labour party. ’ Which means even though they were going through a tough situation the Conservatives kept a strong front and were all in it together against Labour; even the media gave publicity in which spread the disgust to the public about the Labour party. Overall it shows Labour actually had it worse off; they weren’t popular with the public at the time, this later shows at the 1959 general election as Macmillan takes a victory for the Conservatives. On the other hand, Kilmuir was a member of the Conservatives at the time and he might have wanted to give the public the idea that the situation wasn’t as bad as it seemed as his party just caused a major international tensions with our allies. Although he does admit that, ‘Even the most hostile critics of the Conservative party’ had their doubtful moments in the party giving the idea that the party had nothing to hide and that its members knew there would be some slight internal tensions. Opposing the statement, in Source 4, Rowe tells us that after the Suez Crisis, ‘†¦there as a sharp economic crisis’ and that, ‘Politically, Eden was finished. ’. This was true about the economy as there was a international run on sterling, which threatened Britain with economic collapse with no hope of the USA willing to bale Britain out. There were further large withdrawals of deposits by international investors which lead to a major fall in Britain’s currency reserves. This of course damaged the Conservatives greatly as Britain was still trying to recover economically from WWII and this crisis set Britain back about 4 years economically according to an account from Gaitskell; being from the Labour party he may of exaggerated some of these numbers as he produced no evidence of his findings. It also did finish Eden apparently; as he was removed from the party but in Source 5 it says it was because of ‘ill health’ not because of the Crisis itself. People expected R. A. Butler to take over but as he wasn’t much help during the crisis when he took over from Eden. It was actually Macmillan who took control of the Conservatives. Showing the Conservatives they had to change their party structure because they had been damaged by leading Britain into this crisis. Overall, to a certain extent I disagree with the statement because I think that Eden was damaged significantly by the Suez Crisis as he lead Britain into some economic problems which left him politically finished. However, to a larger extent I agree with the statement that it did no damage to the fortunes of the Conservative party even though it had some short term damage at the beginning for example, Eden was removed and they had to shuffle the party leadership, Macmillan then saved the party and won the later 1959 General election with the increasing of public consumption resulting in a period of affluence whilst Labour was left in the gutter constantly in internal party feuds leaving the Conservatives victorious and prosperous.

Essay --

As increasing rates of complementary and alternative medicine (CAM) are becoming intertwined within traditional western practice, it has begun to present itself as a social conundrum. It is believed that the first practices of alternative medicine date back to the mid eighteenth century where as ancient Egyptians were using forms of traditional medicine in the early 5th century BCE. Because it has not been practiced as long as traditional western medicine, it has been framed as a social phenomenon. Its growth is curious in that it is beginning to surface in â€Å"countries were Western science and scientific method generally are accepted as the major foundations for healthcare, and â€Å"evidence-based† practice is the dominant paradigm† (Coulter & Willis 2004). Current US policy and government regulations, like the National Center for Complementary and Alternative Medicine, have allowed for CAM to become an integrative part of modernity. This paper examines how the def ining of CAM has influenced past and present societal reforms and how the lack of a singular, all encompassing definition was once problematic in CAM’s ability to converge with traditional western medicine. However, due to the growing appeal of CAM’s treatment methods, economic and political factors have paved a path a successful integration into modern medicine. Unorthodox systems of medicine were first developed in Europe and the United states in the late 1700s but were not completely adopted by doctors until the 1800s. Traditional, or orthodox medicine was established in the West through a process of â€Å"regulation, association, institution building and systematized medical education† (Coulter & Willis 2004) and any form of deviance threatened that. During the Revolutionary ... ...lternative medicine. It is one of the determining factors of a successful healing process and is often inhibited by the limitations of traditional medicine. Many of these movements have included criticism of traditional medicine and a promotion of responsibility of self (Goldstein 2002). By doing so, patients are able to empower themselves through taking control of their treatment instead of playing a passive role in the process. The societal acceptance and popularity of complementary and alternative medicine contains many facets of reason. The values that CAM embodies and the gaps in traditional medicine it is able to fill both contribute to its high rates of success in the past decades. However, its growing appeal to both the economic and political forces that drive our country has given CAM the leverage it needs to become an intrinsic part of the medical world.

Morality and Power Essay

Thucydides’ written history of the Mytilenian Debate and the Melian Dialogue reflects the reality of a period where morality is dependent on the exercise of power and those who possess it. The main theme running through the course of these two debates is that those with the power to act as they wish inherently have the power to dictate morality. The arguments that decide the fate of the Mytilene are made not strictly on the basis of morality but on how their power allows them to exercise the moral course they choose. The Melian dialogue reveals how those in power can dictate morality in terms of self-interest. Both cases also demonstrate how morality is also a function of self-interest. The question of the relationship between power and morality also hinges on the definition of these two vague terms. Morality, in the broader sense of moral order, has been defined as â€Å"a set of rules which define what is right and wrong. † (Outka and Reeder, p. 5) Who decides what is right and wrong often depends, as with Thucydides’ history, on who has the power in a given situation. Power can broadly be defined, as the capacity to achieve what one wants. (Dickerson and Flanagan, p. 24) In the case of these two debates, the Athenians were the party who possessed the power. They had the coercive ability to decide the fates of both the Melians and the Mytilenians. This power was derived strictly from the military might their empire was able to build up. In both cases, power allowed them to dictate morality to the inferior parties. Thucydides’ history of the Mytilenian debate details the discussion of a council deciding on how to punish the citizens of Mytilene for a failed revolt. The two options on the table are to either slaughter all the inhabitants, as had been previously agreed upon, or to leave them without severe punishment. Cleon, the Athenian responsible of initially deciding to slaughter Mytilene, argued that it was necessary to take his brutal course of action for the safety of the empire. He stated succinctly that â€Å"leadership depends on superior strength and not on goodwill. † (Thucydides, p. 213) He believed that killing the Mytilenians was a question of safety for the empire; If you are going to give the same punishment to those who are forced to revolt by your enemies and those who do so of their own accord, can you not see that they will all revolt upon the slightest pretext, when success means freedom and failure brings no very dreadful consequences. (Thucydides, p. 216) In this statement, Cleon argues that Athens has a moral duty to put down this revolt in the harshest way. He makes it a moral argument because it is in the self-interest of Athens, and any state, to protect its citizens. It is their moral duty. The Mytilenians, in their own self-interest, would argue that it is immoral to slaughter a whole population. They are both right. Subsequently, the council decides not to slaughter the inhabitants of Mytilene. They are convinced to â€Å"look for a method by which, employing moderation in our punishments, we can in future secure for ourselves the full use of those cities which bring us important contributions. † (Thucydides, p. 221) They do this not the sake of the Mytilenians, but for one of pure self-interest. Morality, in this situation, is dictated by the party in power. The Melian Dialogue concerns the history of the island of Melos. Melis, a colony of Sparta, had refused to join the Athenian empire and side against Sparta; they instead chose neutrality. Athens had brought a force to the island to take Melos by force. Before the siege, the two sides met to discuss the surrender of the Melians. (Thucydides, p. 401) Athens does not argue the morality of what they intend to do, they say strongly that † the standard of justice depends on the equality of power to compel and that in fact the strong do what they have the power to do and the weak accept what they have to accept. † (Thucydides, p. 402) In this situation, power does not dictate morality; it completely voids it. The Melians ask repeatedly if the Athenians â€Å"would not agree to ? being friends instead of enemies. † The Athenians reply by saying that â€Å"if we were on friendly terms with you, our subjects would regard that as a sign of weakness. † (Thucydides, p. 402) The Melians question the Athenian’s morality by saying that this is not â€Å"fair play† since they have not posed any direct threat to the Empire. Athens responds by saying â€Å"that by conquering you we shall increase not only the size but the security of our empire? this is no fair fight? it is rather a question of saving your lives and not resisting those who are far too strong for you. † (Thucydides, p. 403) In the end, the Melians do not surrender and the Athenian army slaughters them. In Thucydides’ history, those in power decide morality. In both of the aforementioned cases, both sides have had morality on their side. The Mytilenians and Melians believed the moral precept of saving their own lives. The Athenians believed in the morality of preserving their empire. Neither side was right or wrong, neither side acted immorally. They both acted in their own self-interest. What decided the moral outcome was that Athenians had the power to impose their moral right on their powerless, but equally moral opponents. Works Cited Dickerson, Mark and Flanagan, Thomas â€Å"Government and Politics† Scarbourough, Ontario: ITP Nelson, 1998 Outka, Gene and Reeeder, John â€Å"Religion and Morality† New York: Anchor Books ,1973 Thucydides â€Å"History of the Peloponnesian War† Toronto: Penguin Books, 1972Ã'Ž

The Role Of Non Verbal Communication On Intercultural...

Introduction With the development of cultural organisation,the intercultural communication has become more ligual and more significant than ever before (Wang, 2007). As an international language, English has played an prominent role in making the communication easy between two people with different cultural backgrounds. As a result, the EFL education has concluded the communicative sufficiency as one of the important goals of English as Foreign Language teaching. It seems that intercultural communication will be a successful, as long as the speaker has achieved high qualification in the enlish languag.As it is shown in many studies that the failure in understandings in intercultural communication are largely based by the miscommunication of nonverbal behaviours (Arasaratnam Banerjee, 2007; Ma, 1996). It is, therefore, significant to reach the awareness of the nonverbal communication in the accessment of intercultural communication. NON VERBAL COMMUNICATION This study goal is to examine the role of non-verbal communication in intercultural communication.particular,ly the study identifies the importance of understanding and using non verbal behaviour in living and study in an English speaking country. Moreover, the research reveals some difficulties that participants have encountered when they communicate intercultural. These difficulties further suggest the need of incorporating skills of nonverbal communication in to English language teaching is to enable EnglishShow MoreRelatedIntercultural Communication : Interaction Between International Students And Japanese Peers1451 Words   |  6 PagesIntroduction: Intercultural Communication refers to the interaction between different cultural communities; the sharing of information across language and cultures is known as intercultural communication. The main aim of this communication is to understand the different culture, tradition and interact accordingly. 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