Sustainable Aviation Essay Example | Topics and Well Written Essays - 2000 words

Sustainable Aviation - Essay Example The fuel used for the aircrafts like kerosene and others are often complained of emitting harmful gases like Nitrogen Dioxide into the atmosphere thus leading to an increase of air pollution in and around the regions surrounding the airports. It was however found that reduction of the combustion capacity of the engines led to the increased emission of Greenhouse gases like Carbon Dioxide into the air. Scientists and environmentalists around the world are endeavouring to find means for deriving a sustainable fuel source for the aircraft engines which in turn would reduce the atmospheric pollution (Azapagic and Perdan, 2011, Ch. 15). However it is often held that the endeavour to produce a sustainable fuel for the aeroplanes is not feasible in the technical and ethical sense. It is observed that most of the efforts conducted to produce a sustainable fuel often does not confirm the carbon footprint test and also happens to render increased stress on the engines thus hampering its produc tivity (Daggett et al., 2007, p.1). Hence the above efforts to produce a sustainable aircraft fuel suffer from lack of technical and ethical feasibility. Sustainable Fuel for Aircraft Engines The term sustainability refers to protecting or sustaining the environment in order to meet the needs of the present population without compromising on the needs of the future generation. Sustainability thus concerns a holistic network of environmental, social and economic policies aimed at sustaining the scarce resources. These policies must be measureable and again must also be lend for evaluation to help it met the demand of different periods (Wohlmeyer and Quendler, 2002, p.198). 198). Aviation fuel has long depended on products like kerosene to help ignite the motor engines. However the practice is found to have contributed largely to the polluting of the atmosphere through the emission of large volumes of nitrogen dioxide. Thus to reduce the content of greenhouses gases and other harmful gases into the atmosphere the need for a sustainable fuel resource is greatly emphasized. Research unto generating a feasible sustainable fuel for the aeroplanes is under process with introduction of fuels generated from biomass or fuelling of liquid hydrogen into the air engines. The research of generating a sustainable fuel source for aircraft engines is gaining patronage from many nations owing to its help in protection of fossil resources and the atmosphere from being polluted (Evans, 2007, p.162). Sustainable fuel generation for aircraft engines appears to be the new challenge for it signifies taking resort to alternative sources of fuel other than that related to diesel, petrol and kerosene. Production of alternative sources of fuel can be conducted through the use of biomasses derived from large amounts of bio waste products and algae masses. Again use of liquid hydrogen and other cryogenic materials like use of ethane and methane gases in the liquid state is also being recommended for the fuel generation of aircraft engines. Thus the use of considerable amount of biomass and cryogenic liquids for the production of aircraft engine fuel is considered a sustainable means for generation of aircraft fuel. Use of such energy resources are observed to help in reducing the combustion temperature of the engines which in turn led to the production of low or no amounts of carbon dioxide. Further research is enabled to derive natural gases from both natural bio mass and other synthetic sources with also enhancing the dependence on gases like Ethane derived from natural gases for production of sustainable fuel for aircraft engines (Daggett et al., 2007 , p.1). Technical and Ethical Feasibility of Efforts in Production of Sustainable Aviation Fuel The current

Whartons The Age Of Innocence And Hurstons Their Eyes Were Watching Essay

Whartons The Age Of Innocence And Hurstons Their Eyes Were Watching God. The Idea Of Society - Essay Example This is to say that society is made up of people and so any theme that addresses the needs of people addresses the needs of society. Consequently, when authors use their works to address specific and identifiable issues in society, what they are actually saying is that ‘society is giving a message to the people who live in it’. This is in this direction that society could be touted as being used as a character in a given novel or work of literature. In Wharton’s â€Å"The Age of Innocence† and Huston’s â€Å"Their Eyes Were Watching God†, we read of how the authors bring out specific aspects and issues of the America society at the time at which the stories were set. Based on the issues that the authors about the American society, it can be said that society was used as a character to speak out on matters that affects it negatively and how it wants these issues addressed by other characters around it. How each book conceive of the idea of soci ety In both books, the authors conceive the idea of society as a make up of different people, each of whom is aspiring to have their own versions of satisfaction by pursuing what their hearts desire most. In doing this, light is shed on the fact that even though each person may come into this world as an individual, the collective interactions that exist between each of each forms the concept of society. Each book thus conceives society as a make up different people with different ambitions that bring about variety and diversity. In essence, society is seen as a variety of individual beings, having a social interaction together. In â€Å"Their eyes were watching God† for instance, we read of how Janie and Jody, each having different ambitions for life. Whereas Janie was looking for her independence to be herself as a Black female, Jody was seeking ways of exhibit power and fame (Hurston, p. 16 and p. 43). The author of â€Å"The Age of Innocence† adds a new dimension t o society as a very powerful tool for determining the way that people ought to act. For instance even though Newland had fallen in love with Ellen and had planned on living his wife for her, the mere fact that he heard that his wife was pregnant made him resend his decision. What this means is that societal structures and systems such as the family system has so much power on the actions and deeds of the people within the society. It is not for nothing that even though it was said that â€Å"He had known the love that is fed on caresses and feeds them; but this passion that was closer than his bones was not to be superficially satisfied† (Wharton, p. 157), Newland could still not go ahead to take what he wanted because of the societal system. Who are included or excluded from each author’s society Hurston presents an American society that is made up of a White population, dominating a Black population. It was also made up of a Male population, dominating a Female popul ation. To this end, Janie, who happened to be both a female and a Black was supposed to experience a major exclusion from the author’s society. But interestingly, Janie could single handedly fight for a place in the society of the author even to the end of the book. This is because she defiled the gossips that were going on around her to ensure that she attained what she wanted in life, which was the independence of her identity. So at the concluding part of the story, it was stated that â€Å"It was not death she feared. It was misunderstanding† (Hurston, p. 188). This means that the major fight that Janie was involved in was a fight to give her a place in the s