Causes of Climate Change. Is It Nature of Negligence?

BRETT LUCAS TRINITY COLLEGE L6 SCIENCE GEOGRAPHY CLIMATE CHANGE NATURE OR NEGLIGENCE The mood of our world is changing, but why? There is a great debate going on in the scientific lodge on whether our current climate mixed bag crisis is a indispensable point over millions of twenty-four hourss as what has happened on the planet of Mars or this natural operate is being accelerated by mans negligence. But first we must establish what is climate change? humor Change is a long-term shift in the statistics of weather (taken from weather. gov October 2007 word on Climate Change).Throughout our planets long history our climate has changed between raging and cold in each time period from the Precambrian period to today. The universes climate has always been considered dynamic with changes occurring through a natural cycle. What we ar all concerned about here on farming is whether the changes that gestate happened today have been accelerated because of mans musical accompani ment trends. Scientists from classrooms to NASA specialists study climate change, and evidence such as tree rings, pollen samples, trash cores and sea sediments provide vital information.Scientists have all agreed that causes of climatic change be of two types those that are due to natural causes and those that are created by the main inhibitors of flat coat, Man. Natural Causes Continental Drift This has been happening on our planet from the beginning of time, which is caused by the ceaseless movement of our tectonic plates. The make of our theory is that the western side of Africa and the eastern side of South the States seems to be able to fit like a jigsaw fuck off and they have similar fogys.In the past all of the continents formed a commodious super continent called Pangaea. When the continent separated it caused great changes to the kingdoms ocean current pattern, whence causing a the fresh and salt irrigate cycle to be off balance so alter our planets climate. Volcanoes During volcanic eruptions large volumes of nursery gases (sulphur dioxide (SO2), water vapour, dust, and ash) are dispersed into the earths automatic teller machine. These gases trap change from exiting the strain by and by the earth has absorbed what it can from the Sun.For example, in April 1991 Mount Pintoba in the Philippines erupted emitting tonnes of gases into the atmosphere. The blow flock in its eruption destroys natural life on the land open air with its lava. When the volcano is an undersea volcano it can displace great amounts of water during an eruption especially when the undersea volcano creates an island, which can further assume the ocean currents. The Earths Tilt The earth, which is tilted at an move of 23. 5 to the perpendicular plane of its mountain rangeal path, makes a full orbit around the sun in one year.For half of the year the blue hemisphere is tilted towards sun, which is summer for the North Pole (6 months of daylight). In the othe r(a) half the northern hemisphere is tilted away from the sun therefore the North Pole bequeath have winter (6 months of darkness). If there was no tilt, there wouldnt have been any seasons. If the tilt was more the summers and winters would have been intensified whilst if the tilt was less, the summers would have been cooler and the winters would have been warmer. Greenhouse EffectThe greenhouse effect occurs when heat energy from the sun enters the earths atmosphere and almost is being absorbed by the earth. The reflected heat energy rays is displace back into the atmosphere but most is then stopped by the greenhouse gases (such as water vapour, carbon dioxide, methane, nitrous oxide and chlorofluorocarbons) which keep most of the reflected heat energy from escaping and reflecting it back d receive to earth with more heat energy from the sun. With this continuous action the earths turn out temperature will rise. maritime CurrentsThe worlds oceans are major components in the c limate system. They cover approximately 71% of the earth and absorb about doubly as much of the suns radiation as the atmosphere or the land surface. The ocean current moves heat around the earth (which is about same as the atmosphere). Winds push horizontally against the sea surface and drive ocean current patterns. nautical currents influence certain split of the world more than others. For example the Humboldt Current that flows along the sailingline of Peru directly affects the coast off of Peru and other adjoining regions.The El Nino in the Pacific Ocean affects the climatic conditions all over the world due to the ocean currents. Ocean currents can affect places that share the same latitude in atomic number 63 and North America. Any of these phenomena can have an impact on the climate, as is believed to have happened at the end of the last Ice Age, about 14000 long time ago. Human Causes Use of Oil, Coal and Natural Gas With the dawn of the industrial Revolution in the 19 th Century, we saw the large-scale use of fossil fuels (such as Oil, Natural Gas, and Coal) for industrial activities (factories, electricity).These activities created jobs and over the years people go from rural areas to cities. In the present day we use these fossil fuels on a much larger scale to power almost every thing, which in turn let out millions of tonnes of carbon dioxide each day increasing the amount of greenhouse gases in the atmosphere, which creates more heat coming down to the earth, melting our polar ice capes and raising sea levels. gain ground heated seas will increase the number and intensity of hurricanes and other climatic natural disasters around the world (for example hurricane Ivan which hit the country of Grenada in 2004).How we all contribute Every Day All of us in our daily routines contribute our bit to this change in climate. For example * electrical energy is the main source of power in urban areas. All our gadgets stick out on electricity generat ed mainly from thermal power plants. These power plants fleet on fossil fuels. * Cars, buses, trains, aircraft and trucks are the most common ways of tape drive for goods and people in and out of cities. These means of transport need to be powered to move therefore its usually powered by flatulency or diesel. Large quantities of waste are generated in the form of plastics that abide in the environment for many years and cause damage. * Many trees are destroyed to facilitate the gamey demand for paper, which is being used in our work at school and offices. Trees are also destroyed for timber. With the continuous goal of our forest this will increase the carbon dioxide levels in the atmosphere. * With our spheric population increasing at a rapid rate, we will need food to feed this population.Therefore more farms will be needed for the ripening of the food, thus more fertilizers being used to grow the crops better. Due to the high use of fertilizers large amounts of nitrous ox ide is emitted into the atmosphere adding to the amount of greenhouse gasses in the atmosphere. Global Warming This is I caused by mans longing use of the earths resources creating a high above familiar greenhouse gas levels. These high levels of greenhouse gases are warming up the earth and depleting our ozone layer.A hole has been formed over Antarctica, which was caused by global warming. This hole is allowing more sunlight to enter the earths atmosphere thus melting our polar ice caps and raising our sea levels (the sea is uprise at a rate of 3. 33mm per year NASA). With the warming up of the earth the sea will also be warmed thus creating stronger hurricanes and longer hurricane seasons. Conclusion There is no doubt that the earth in its own natural evolution would have created significant occurrences of climatic change.Thing such as continental drift, volcanoes, the earths tilt, the greenhouse effect and ocean currents are all parts of the natural order. We know scientifi cally that the earths has been around for millions of years and there is no definitive time when these natural causes would have impact climate change to the point where earth would have deteriorated to a microscope stage similar to the planet Mars. What is clear though is that the impact of mans lifestyle has negatively affected climate change to the point where the destruction of earth is now in the foreseeable future.Governments of nations around the world, advised by scientist have now embarked on programs to decelerate the speed of climatic change by developing green engineering which is the design, commercialization, and use of processes and products that are workable and economical while minimizing the generation of pollution at the source and stake to human beings health and the environment. Green engineering embraces the concept that decisions to protect human health and the nvironment can have the greatest impact and cost specialty when applied early to the design an d development phase of a process or product. (United States Environmental Agency) Man must now act to make up ones mind the survival of Earth Existence. Bibliography 1Climate InstituteClimate. org 2Causes of Climate ChangePhysical Geography. net 3Global Climate ChangeNational Aeronautics and plaza Administration 4Causes of Climate Change 5Geography for ASEditor Clive Hart 6Geography An Integrated ApproachDavid Waugh