Climate Change Essay Example | Topics and Well Written Essays - 1750 words

Climate Change - Essay ExampleThe milankovitch theory implies that over time three cyclic events vary the amount of solar radiation that reaches the priming and eventually it causes climate change. According to Burroughs (2007) eccentricity is a cyclical variation that determines the shape of the earths orbit around the sun. The more ovate the earths orbit is, the greater the the greater the variation in solar energy that is received at the top of the atmosphere between the earths perihelion and aphelion. As the earth rotates on its axis, it wobbles hence changing the timing of the solstices, and equinoxes a process known as the procession of the equinox. Volcanic eruptions eject large-mouthed amounts of sulphur dioxide gas which reacts water vapor found in the stratosphere to form a dense layer that reduces atmospheric transmission of suns ledger entry radiation. Sun spots, which are caused by the suns magnetic field are dark, planet sized regions that appear on the suns surfac e. These regions are colder than with an average temperature of 4,000K. Climate change can be explained by these factors although they are only some of those which cause climate change.Since 1979, the summer polar ice cowls size has shrunk more than 20% and this has not only affected the natives but the globe as a whole. The contraction of the arctic ice goon accelerates global warming since the protective, cooling layer over the arctic is melting and hence the earth absorbs more sunlight (Kininmonth 2004). If the arctic is warmer, this will affect prevail patterns since the rest of the world will also warm up and eventually food production will decrease. In contrast, most of the world depends on molten glaciers for fresh water supply through lakes and rivers hence their melting will cause short supply of the same. It will also cause shortage of electricity since a great percentage of the worlds population depends on melting glaciers for hydro electric power. Animals, birds and fish will lose their