Global Warming Essay Example for Free

Global Warming Essay Among The most profound environmental problems, Global Warming is one of the serious problem. Former vice president Al Gore takes his environmentally friendly political agenda to the big screen with the documentary ‘An Inconvenient Truth’. The film follows Gores platform of recognizing global warming as a worldwide problem. Gore says the truth must be revealed or there will be consequences to pay . Since the beginning of Industrial Revolution, atmospheric concentration of CO2 have increased by 30%, Methane concentration by 100% and Nitrous oxide concentration by about 15%. These increases have enhanced the heat trapping capability of the Earth’s atmosphere. The combustion of coal, oil and natural gas accounts for most of the heat trapping greenhouse gases emitted by human activities. Most of the best and brightest in the world scientific community, however, believe we are heading for the trouble. But coal and petroleum products are abundantly used for moving the life cycle of people. Asking such people to slow down or choose more expensive alternative energies is asking for trouble. Petroleum industry is very big industry In which there are millions of people employed and the millions of families thriving on this for their livelihood. To find out the solution of Global Warming merely alleging the petroleum industry and burning of fossil fuels then those millions of people who are depending on these industries are badly affected. There are so many other causes also which are responsible for the Global Warming like industrial revolution, nuclear radiations and emitting of green house gases. 98% of total global greenhouse gas emission are natural, mostly water vapour; the effect of water vapour is not well understood. Some of the critics of Al Gore’s ‘Inconvenient of Truth’ says â€Å" An Inconvenient Truth, Al Gore makes absurd remarks about global warming that stretch well beyond the IPCC claims. This clip demonstrates some of Gores various exaggerations on the subject of global warming†. There could be benefits in the wake of the planet’s warming. Increased rainfall, created by climatic fluctuations, in a semi arid region will raise agricultural productivity. Rising CO2 levels cause plants to grow faster and absorb more CO2, through photosynthesis. Longer growing seasons may boost yields in northern Canada and Europe. In fact, a vast majority of scientists now believe that even an immediate and dramatic cut in global greenhouse gas emissions would not fully prevent climate change impacts. Even USA, world’s largest emitter of greenhouse gases, is not willing to be subjected to any kind of restraint on their energy use. USA has not ratified the Kyoto Protocol. The country claimed that if it has to implement the provisions of the Protocol, the economic losses will be heavy and will drive 5 million Americans out of work. Policies to promote energy efficiency, in the long run, will improve economic performance, at the individual firm or country level. Global warming is a global problem calling for global solutions; no nation alone can defeat the problem. Industry must develop energy – efficient vehicles, consumer goods and production processes. â€Å" Most important, individual households must contribute to emissions reduction through their power of consumer choice and their personal lifestyle decision†. Reference: With inputs from â€Å" Is Apocalypse Near, Far or Never? † by G. Vijaya Raghavan V S M Nair.

Acid Rain :: science

Acid Rain INTRODUCTION: Acid rain is a great problem in our world. It causes fish and plants to die in our waters. As well it causes harm to our own race as well, because we eat these fish, drink this water and eat these plants. It is a problem that we must all face together and try to get rid of. However acid rain on it's own is not the biggest problem. It cause many other problems such as aluminum poisoning. Acid Rain is deadly. WHAT IS ACID RAIN? Acid rain is all the rain, snow, mist etc that falls from the sky onto our planet that contains an unnatural acidic. It is not to be confused with uncontaminated rain that falls, for that rain is naturally slightly acidic. It is caused by today's industry. When products are manufactured many chemicals are used to create it. However because of the difficulty and cost of properly disposing of these products they are often emitted into the atmosphere with little or no treatment. The term was first considered to be important about 20 years ago when scientists in Sweden and Norway first believed that acidic rain may be causing great ecological damage to the planet. The problem was that by the time that the scientist found the problem it was already very large. Detecting an acid lake is often quite difficult. A lake does not become acid over night. It happens over a period of many years, some times decades. The changes are usually to gradual for them to be noticed early. At the beginning of the 20th century most rivers/lakes like the river Tovdal in Norway had not yet begun to die. However by 1926 local inspectors were noticing that many of the lakes were beginning to show signs of death. Fish were found dead along the banks of many rivers. As the winters ice began to melt off more and more hundreds upon hundreds more dead fish (trout in particular) were being found. It was at this time that scientist began to search for the reason. As the scientists continued to work they found many piles of dead fish, up to 5000 in one pile, further up the river. Divers were sent in to examine the bottom of the rivers. What they found were many more dead fish. Many live and dead specimens were taken back to labs across Norway.

Purpose of an Operating System

CPU and memory requirements are the most glaring but even hard rive partition size and what kind of disc drive present matters. Within the generations of Windows there is a long list of features that separate them. Windows XP was introduced with personalized start menu options per user using the PC. XP was the first Windows SO to self-adjust the task spacing as the user opened more programs. Windows Vista introduced Area, Sidebar, and Gadgets in an effort to enhance the users experience but also to make it easier to interact with the main system through the mini-application based Gadgets.Simple services like displaying pictures, turning wireless on or off, ND music playback were available that prior to Vista required a running program. Windows 7 further enhances the user experience with modification to Windows explorer and how it organizes the files and folders in an easier to use format. The use of Libraries enables the SO to index files by content and therefore able to group in a w ay where the user is able to locate a file even if the file is saved in an unrelated folder. The second largest of the major ASS is used exclusively by Apple.Mac SO is a proprietary system that has a very strict requirement for what hardware will work with the system. Despite the hardware limitations to only Intel Cups and approved motherboards, it remains a huge favorite to certain groups of users like multimedia designers, graphic artists, and music producers. One potential reason for this is because Apple was the first to utilize a simple a graphical user interface (GU') therefore making it easier to use the system instead of driven by often hard to use and complex DOS commands.With later versions of Mac like SO X, various technologies, such as Anti-Aliasing and Colors are used to dramatically improve the user interface. Another difference is that a user can pen PC files like . Doc and . AXIS within Mac without problem, while Windows requires conversion software to open Mac files . By doing this, Apple has in effect broken down many important barriers while the average PC user has resisted in adopting a Mac over a PC. Despite some advantages, Mac usage is low, roughly 10% or lower of the entire computer market in the U.S. The smallest market share among the ASS belongs to Linux. Users have been slow to adopt it since its inception in October of 1991 by Lines Dorval. Despite little use by average users, there exists many a version or distributions which ghastly dominate the area of computers known as servers, main frames, and super computers. Linux is also the system of choice on much smaller devices like phones and tablets. What makes Linux exciting to use for some is also what keeps most users away; Linux has splintered to over 300 variations.Most are specialized for the devices which it is meant to be installed on, but even for use for the mass market of users there are still four major variations such as Bunt, Use, Red Hat, and Knops. Common trait within Linux is that it has a very small footprint compared to larger ASS like Windows. For computer enthusiasts, one can run a distribution of Linux on hardware that is otherwise vastly outdated or run alongside Windows on the same computer.Another advantage of Linux is the well-established and openly accessible documentation on the commands but also how to configure the System best for the user or the use of the SO as well as how to troubleshoot issues. For software hobbyists and professionals this means that they can basically tailor the system to their needs and cut the dependence on what Microsoft or Apple may offer. Because of the open source nature of the SO, they can both upload fixes and receive enhancements from other users and the committees that oversee Linen's development.Despite the differences between operating systems a common thread among them is that they help shape the user experience of a computer. By doing so it enhances our desire to continue using computers and their many benefits. Without development of operating systems things such as modern day networks or communications wouldn't be possible. Since new technologies are constantly bringing us new and better hardware, it's the operating system and its development that will continue to encourage the user to ultimately enjoy the device.

Beliefs and The Existence of God - Free Essay Example

Sample details Pages: 2 Words: 666 Downloads: 1 Date added: 2019/10/30 Category Religion Essay Level High school Tags: Existence of God Essay Did you like this example? In Meditations on First Philosophy, Renà © Descartes attempts to rebuild his beliefs from the ground up, accepting only those he can be absolutely certain of. In order to decide the certainty of a belief, Descartes creates proofs through a series of questions and statements. Each belief he attempts to prove is thoroughly explained in a new Meditation. Don’t waste time! Our writers will create an original "Beliefs and The Existence of God" essay for you Create order In Meditation III specifically, Descartes attempts to prove the existence of God. However, proving the existence of God does not serve solely for the renewal of his beliefs. Instead, it is to actually disprove the existence of an idea he has already shared. In Meditation I, Descartes introduces and explains the origins of doubt. He claims he cannot even know if what he believes he sees is actually what he sees. In order to explain why this is so, Descartes declares, Accordingly, I will suppose an evil genius, supremely powerful and clever, who has directed his entire effort at deceiving me. (12) Here he is reasoning that a demon, or evil genius, exists whose job is to merely deceive and consequently this causes doubt in perception. Thus far, there is nothing to prove this demon is or is not real, so Descartes must recognize this idea as it possibly being true. In Meditation III, Descartes proclaims, And certainly, because I have no reason for thinking that there is a God who is a deceiver the basis for doubting, depending as it does merely on the above hypothesis, is very tenuous and, so to speak, metaphysical. But in order to remove even this basis for doubt, I should at the first opportunity inquire whether there is a God (20) He knows that God, being an all perfect being, would not deceive him, and he knows there cannot be a being more powerful than God to overrule this. So, in proving the existence of God, he proves that no being could deceive another; therefore, there cannot be an evil demon and his perceptions are clear. However, in attempting to establish Gods existence, it can be said that Descartes is misguided, and his reasoning is problematic. It is understood that Descartes must prove that God exists in order to rule out the evil demon. And by ruling out the demon he ultimately assures himself that what he clearly and distinctly perceives is true because he will not be deceived by a greater being. It is also understood that Descartes already has an idea of God as he tells in Meditation Three: It is indeed an idea that is utterly clear and distinct; for whatever I clearly and distinctly perceive to be real and true and to involve some perfection is wholly contained in that idea. The result is that, of all the ideas that are in me, the idea that I have of God is the most true, the most clear and distinct. (26) Here, Descartes claims that he cannot doubt the existence of God, because he already has a clear and distinct perception of Him. These two understandings are completely conflicting. In one instance he claims he cannot have clear and distinct perceptions unless he knows God exists, but in the other he claims he already knows God exists because he has a clear and distinct perception of Him. He faces what is known as the Cartesian Circle, where the opposing ideas are in a constant circle. How can it be that he already has a clear and distinct perception of something that proves he has clear and distinct perceptions? This fault leads the reader to believe Descartes argument and proof is largely misguided and cannot be trusted. Through first examination, it appears Descartes reasoning for proving the existence of God is sound. In his case, it is logical to want to disprove the existence of a demon that causes another to doubt. However, when given a closer look, it is clear Descartes ideas and reasons given in proving the existence of God contradict one another giving a sense of unreliability to his work.