Global Warming Essay Example | Topics and Well Written Essays - 3250 words

Global Warming - Essay exemplificationSun is a continuous seeded player of slide fastener for our universe and its energy reaches the earth in fake of electromagnetic radiations. A part of these radiations is absorbed by the outer atmosphere of the earth while the be is allowed to enter the lower atmosphere where life exists. The radiations reaching the lower atmosphere are the main source of energy for the organisms living here. Plants absorb this energy and convert it into chemical form which then supports the entire sustenance chain. Humans have also learnt various methods to harness this energy to fulfill their requirements. The part of energy not utilized by humans or plants falls on different parts of dry prop and oceans around the world. A very small amount of this energy is absorbed while most of it is reflected congest into the atmosphere. The 30% of total energy is reflected back to the sun by the atmosphere and land. The remaining 70% which is ab initio absorbed by earth either leaves through direct radiation or through conductivity and convection of adjacent layers of air or through the latent heat of vaporization absorbed during cloud formation. therefrom almost all the heat absorbed initially by earth is reflected back to the atmosphere. This heat energy which enters the atmosphere should ideally leave the atmosphere through radiation into the outer space. This natural process keeps the temperature of the earth stable within a certain range. Recently, due to human activity, the amount of gases such as degree Celsius dioxide, nitrogen oxides, sulphur oxides and hydrocarbons in the atmosphere has increased substantially.