Friday, June 7, 2019

Global Warming Essay Example for Free

Global Warming EssayGlobal Warming is an issue that concerns almost everybody worldwide it is the primary cause for the anomalous and sometimes devastating weather that is experienced around the world. Global warming is causing the spring up in sea level which in turn causes the flood of coastal areas and areas with low elevation. Is global warming really happening today? Scientists with the United Nations Environmental Program (UNEP) believe it is so. It is indisputable that there has been a rise in the concentration of nursery gases (GHG) in the atmosphere during the last century, which scientists think may be one of the causes of global warming. II. Discussion A. Global Warming and end of the world Will global warming spell doom for our world? Scientists believe this to be so. Much depends on what actions we take this instant and in the coming years. Meteorologist Jagadish Shukla of the University of atomic number 101 found out that de timberlandation would cause rainfa ll in the Amazon River to decline by more than 26 percent from the current 2. 5 m. to active 1. 8 m. a year. At the same time, the burning of fossil fuels, particularly coal and oil, produces sulfur dioxide and nitrogen oxides which are hazardous to the atmosphere.Findings show that a wizard smokestack may produce as much as 500 tons of sulfur dioxide a day. When these gases combine with oxygen and moisture, sulfuric acid and nitrous acid is formed. The rain will carry the acids to the ground (acid rain) which may cause the depletion of calcium and magnesium in the soil, elements needed by plants for the formation of chlorophyll and wood, or it may cause the release of aluminum in the soil, which are poisonous and can kill the roots of trees (Carwardine, 2000). According to Dr.Sadik, UN population funds director, utter that the more people increased pressure on already stressed lands, forests and water supplies. Other sources of climatic change were attributed to some forms of gases such as nitrous oxide, methane and chlorofluorocarbons (CFCs) (Cronin, 2001). Nitrous oxide or laughing gas is a colorless gas with a sweet taste and odor that is used as an anaesthetic in minor surgery that H2O is responsible for active 6 percent of the human contributes to greenhouse warming.Methane or cow gas, on the other hand, makes up about 18 percent of human contributions to greenhouse effect. Cattle, sheep, goats, and other cud-chewing animals give off methane, in burps and flatulence as they digest. CFCs was discovered by Thomas Widgley Jr. , a chemist working at the Frigidaire Division of General Motors, used as coolants in refrigerators and air conditioners and aerosol propellants in spray cans, medical sterilizers, cleaning solvents for electronic components and raw materials for making plastic foams such as coffee cups.CFCs are estimated to account for 14 percent of global warming. Experts said that what is happening right now is not a matter of adding a few deg rees to the average temperature of a community. A rise of this magnitude may cause life, for without the environment, creatures on earth cannot arrive (Davidson, 2003). B. Recommendations a. ) Recycling and Reuse of Solid Wastes Solid wastes are now viewed as a potential resource which must be recovered and reused whenever possible. Since disposal forest resources are rapidly being depleted, recycling solid wastes offer a solution to both.Consider the element phosphorus. Mined from phosphate ores, it is manufactured into fertilizers. It enters the plant tissues and we retrieve it when we eat plant as vegetable. This is later excreted and joins the sewage system. The sewage system sludge can be used directly as fertilizer or soil conditioner. b. ) Conserving our Forests Every now and then we receive alarming news about our forests being denuded. Big logging concessionaires indiscriminately cut down trees without job reforestation measures. III. ConclusionOf all issues affecting h umanity, climate change is the most pervasive and truly global, posing a very real and serious flagellum to our environment. Climate change is the alteration of the pattern of global climate that may be due to human activity that alters the composition of the atmosphere. If present day emissions of greenhouse gases continue, it is estimated that the rate of increase in global mean temperatures will reach about 0. 3o C per decade. This will mean a likely increase of 1o C above the present level by the year 2025, and 3o C before the end of the next century.Reference1. Carwardine, Mark (2000). The WWF Environment Handbook. London Macdonald Optima. Attractively illustrated vade mecum for the general reader. 2. Cronin, Helena (2001). The Ant and the Peacock Altruism and Sexual Selection from Darwin to Today. Cambridge Cambridge University Press. Chapters 2, 3, 4 (pp. 7-110). 3. Davidson, Joan (2003). How Green is your City? Pioneering Approaches to Environmental Action. London Bedford Square Press. Guide to community action for urban renewal.

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