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Climatic changes have typically taken place on earth as a result of natural causes through timescales varying from decades to centuries, nonetheless, based on significance evidence, professionals in climatic science research agree that the changes that have been evident in the past few decades are large as a result of human activities. The influences of human beings on climate change come from the burning of fossil fuels as well as changes in the manner in which lands are utilized. These activities modify the radiative equilibrium of the planet through altering the composition of the atmosphere thereby increasing the effect of greenhouse gases or changing the degree of reflectivity of the surface of the earth.