Essay on Global Warming Essay Example for Free

Essay on Global Warming EssayGlobal warming is the term used to describe a gradual increase in the average temperature of the Earths atmosphere and its oceans, a change that is believed to be permanently changing the Earths climate. Even though it is an ongoing debate, it is prove by the scientists that the planet is warming. The 29th century is experiencing a continued increase of Earths mean atmospheric temperature by most 1.4 degrees F and about two thirds of it occurring since 1980. This is global warming is affecting the natures balance and has a huge impact on life like continued screw up waves, and sudden occurrence of storms and floods. Dont we see time to time the epidemics that are devastating to human life and the flooding of the farmlands that puts economy in a deep hole?Scientific evidence indicates that since 1950, the worlds climate has been warming, primarily as a result of emissions from non -stop burning of fossil fuels and the razing of equatorial forests. Since the industrial revolution till this day, there is a constant emission of the carbon into the atmosphere, everything we do we leave carbon footprints. It is a man made exploit of the global warming. The global emissions jumped 3 percent in 2011 and are expected to jump another 2.6 percent in 2012, researchers reported. The greenhouse effect is a exploit by which the greenhouse gases absorb thermal radiation these are then reradiated in all directions. But when some of these radiations come back to the surface and cut atmosphere, it causes increase in the average surface temperature leading to global warming. Global warming CausesThe causes are many of which the main culprit is the increase in the greenhouse gases that is produced by burning fossil fuel and deforestation, thus intensifying the greenhouse effect leading to global warming. The four main contributors of the greenhouse effect are, pee vapor, carbon dioxide, methane and ozone. Mining for coal and oil releases m ethane in the atmosphere. More ever the leakage from natural gas fields and landfills are additional source of methane. overweening cutting down of the trees is another factor causing global warming. When deforestation happens the efficiency by which carbon dioxide is stored and oxygen released by the green plants are change magnitude to a huge rate in turn causing increased concentration of carbon dioxide that leads to increased greenhouse effect.The nitrous oxide from fertilizers, gases used for refrigeration and industrial processes are other factors that cannot be forgotten as the cause of Global Warming. Another source of methane is methane clathrate, a compound containing large amounts of methane holeped in the lechatelierite structure of ice. As methane escapes from the Arctic seabed, the rate of global warming will increase significantly. Ice caps and glaciers reflect sunlight, bouncing high temperature sun -rays back into quad away from the Earth. When these icecaps ar e removed the earth gets warmer as the dark oceans absorb much thermal radiation from the sun. Some regions may be mingy with rain and some areas will suffer drought due to global warming.The climatic changes happen due to global warming. Seasonal changes are unpredictable unthought-of thunderstorms might result as mentioned earlier. The burning of wood (should be reduced to a great extent) releases oxidizable carbon to the atmosphere whose presence in greater amount causes the elevation of temperature. There is strong evidence that emissions of chlorofluorocarbons (CFCs) were the major cause of the recent abnormal warming. Like carbon CFC do not trap heat but in the presence of UV rays the chlorine gets detached from CFC, drifts up into the stratosphere and these unattached chlorines catalytically convert Ozone molecules into Oxygen molecules depleting the ozone layer.