Let's Talk Global Warming

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<p>Global Warning</p> <p>Global WarmingThis is a presentation of the effects this Global Phenomenon will cause to our future everyday lives..</p> <p>What is Global Warming? Global Warming is the increase in the average temperature of the Earths near-surface air and oceans since the mid-twentieth century and its projected continuation. </p> <p>What is the Greenhouse Effect? The Greenhouse Effect is the heating of the surface of a planet or moon due to the presence of an atmosphere containing gases that absorb and emit infrared radiation . Greenhouse gases which include water vapor,CO2 and CH4 are almost transparent to solar radiation but strongly absorb and emit infrared radiation. The Main CausesCarbon Dioxide Emittion from Cars,Buildings,Airplanes and Power PlantsNitrous-OxideMethanePermafrostAnd many more gases that we will see furtherThis Earth-Harming Phenomenon is mostly caused by:Carbon Dioxide(CO2)Carbon Dioxide commonly known as CO2 is one of the most harming gases for the atmosphere of our planet.This eugene gas is emitted from car exhausts,building chimneys,airplanes and power plants.The U.S is the central air pollution core,as its CO2 emittion represents 60% of the global CO2 emittion. To the right,is presented a chart that shows the global CO2 emittion and the GWP from 2002 until today. G.W.P stands for Global Warming Potential and is a measure of how much a given mass of greenhouse gas is estimated to contribute to global warming. 5Methane(CH4)Methane is a chemical compound with the molecular formula CH4.It is the simplest alkane, and the principal component of natural gas. Methane was discovered and isolated by Alessandro Volta between 1776 and 1778 when studying marsh gas from Lake Maggiore.It is a greenhouse gas with a high GWP of 72(over 20 yrs.) or 25(over 100 yrs.)Methane in the atmosphere is eventually oxidized, producing CO2 and water(H20).</p> <p>6Nitrous Oxide(N2O)N2O, commonly known as happy or laughing gas, is a chemical compound with the chemical formula N2O. At room temperature, it is a cordless non-flammable gas,with a pleasant ,slightly sweet and odour taste.It is used in surgery ans dentistry.N2O reacts with the ozone and is the main naturally occuring regulator of stratospheric ozone.It is also a major greenhouse gas.It has 298 times more impact per unit weight than carbon dioxide.DeforestationDeforestation is not logging or burning of trees in the forested area. There are several reasons for doing so: trees or derived charcoal can be sold as a commodity and used by humans, while cleared land can be sold as pasture, plantations of commodities and human settlement.The removal of trees without sufficient forestation has resulted in damage to habitat, biodiversity loss and aridity. Deforested regions often degrade into wasteland. The major problems deforestation can cause are:AtmosphericHydrologicalEcologicalSoil PermafrostPermafrost is a solid structure of frozen soil, extending to depths of 2.200 metres in some areas of the arctic and subarctic regions containing grasses, roots, sticks, much of it dating back to 30.000 years.About 25% of the areas of the Northern Hemisphere hold permafrost, which is defined as soil whose temperature has been 32 degrees Fahrenheit(0 degrees Celsius)for a period of at least 2 years. Permafrostis under 85% of Alaska land surface and much of Canada, Scandinavia and Siberia and holds about 14% of the worlds carbon.The hard permafrost on which is built homes and other buildings,can,with rising temperatures turn into a soft material causing subsidence and damage to buildings.Ground instability would cause erosion,affect terrain,roads,slopes,foundations and more. TundraA name very suited to environs of the arctic and subarctic,tundra means treeless plain in Finnish.The tundra is a major segment of a particular region having distinctive vegetation,animals and microorganisms adapted to a unique climate(biome) home to about 1700 kinds of plants including shrubs,mosses,grasses,lichens and 400 kinds of flowers.About 50 billions tons of carbon are estimated to be hels in the frozen state of tundra,and now the tundra is beginning to become to a source of carbon dioxide. Natural RemediesRestrict car and power plant CO2 emittion.Develop varied technologies for use of alternative energy.Restrict Carbon Dioxide and other greenhouse gases emittion.Address energy conservations near our area.Reduce our energy bills with use of fluorescent lights and environmentally friendly refrigerators. </p> <p>If bees disappeared off the face of the globe,mankind would have four years of life left.Albert Einstein</p> <p>WE MUST STOP!This presentation was created and published by :Harris Zachariszacharisharris@gmail.comCopyright 2008-2009</p>