Global Warming Essay -- Environment Global Warming Climate Change

Global WarmingFor the last 20 age or so the subject of global warming has spawned hop up up debate among the universes brightest minds. Its agents and effects, if either actu all(prenominal)y exists, feature been hotly debated. The most popular hypothesis is called the babys room effect with the agreed upon cause being green house gasses. These gasses atomic number 18 all naturally occurring and accommodate weewee vapor, methane, oxygen, and the now infamous carbon dioxide. Greenhouse gasses exist in the atmosphere and have an effect on our global weather. They trap radiated heating system and prevent it from exiting our atmosphere. This supposedly increases global temperatures and is, or will, cause melting of the frosty ice caps. This in turn is expected to raise ocean take aim and cause global coastal flooding.A brief geology lessonThe world we locomote on is at least 4.6 zillion years old. In that eon span it has undergone immense changes. At one time most of the vote out surface was connected. The continents separated and migrated to their present positions. The force behind this is called plate tectonics. The sea floor is still spreading today and is the driving force for all of the earthquakes and volcanic activity that we experience today. Convection currents created by the tremendous heat and compel of the inner core move the plates. This core is undergoing massive thermonuclear reactions. The heat produced migrates outward and the currents it produces move the plates. This process also releases enormous amounts of carbon dioxide and water vapor. This has been taking place since the footing was formed. We know from geologic record that in that respect have been numerous greenhouse and icehouse ages. The question is, is the greenhouse state caused by greenhouse gasses? Probably not, at least not entirely. There be several other factors involved - the most significant being the Milankovitch regular recurrences. These are three cycle s that describe the motion of the primer through space. The first involves the Earths orbit around the solarize. The orbit is not perfectly round, only elliptical. This means that at one point the Earth is closer to the sun than at other times. This cycle takes about 100,000 years to complete. The second cycle involves the tilt of the Earths axis. The Earths axis is soon tilted about 23.5 degrees. But this tilt is not constant. Throughout a period of about 40,000 years the tilt changes a f... ...een maneuvering a downward trend since their peak in 1940. Satellite readings continue to show a decrease in temperature. They recorded 1997 as the coolest year since this engine room has been implemented. This imagery was also accurate enough to predict that La Nina would tower in 1998, lowering global temperatures significantly2. That same year capital of the Russian Federation recorded its coldest December in a century3. ConclusionThis great world of ours has been around for a lon g time at least 4.6 billion years. During that time untold and unimaginable changes have taken place. Countless icehouse and greenhouse ages have come and gone. Continents have been created, destroyed, and migrated over and over again. Thousands, perhaps millions, of species have come and gone. All this, and more, without any influence from man. In geologic harm we have been on this Earth for a very, very short time. The Earth evolves on a time scale that we cannot comprehend. It has developed a balance, a system of checks and balances, which we have little or no control over. To conjecture that we can alter a global climate that has been 4.6 billion years in the making merely shows just how much we have all the same to learn.