Climate Change essay Example | Topics and Well Written Essays - 1000 words

Climate Change - Essay ExampleThe difference between the climate change that takes assign over long geographical periods and the present climate change brought about by global heating is that whilst the former is a natural phenomenon, the latter is anthropogenic or man-made in origin.The cosmoss temperature is the product of a ping-pong game between the sun and the earth. The sun constantly and continuously gives withdraw energy in the form of sunlight and radiates it to the earths atmosphere. The solar energy that touches the earths atmosphere is either absorbed by some of the earths particles or transmitted. The heat that reaches the earths surface is then emitted back to the atmosphere as invisible light radiation. However, not all of the infrared radiation successfully passes out of the earths atmosphere because some atmospheric components absorbs and therefore prevents infrared radiation from entirely leaving the atmosphere, The trapped heat is then eventually reradiates b ack to the earths surface (see Fig. 1). Such heat-trapping components are called greenhouse gases and the process of absorbing, trapping and reradiating infrared heat to the earths surface is called the greenhouse effect. The greenhouse effect is what sustains life on earth because without it earth would be to a greater extent than 30C colder than what it should be and therefore, inhabitable by humans, animals and plants. The present global warming is attributed to the more than vulgar amount of heat trapped and reradiated back by the greenhouses gases to the earths surfacea (Great Britain Department for Environment, Food and untaught Affairs 2006 8 Ebbing & Gammon 210 Hardy 2003 3).There are two classifications of gases found in the earths atmosphere the primary gases made up of nitrogen, oxygen and argon which make up 99% of the gases, and the trace gases like carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), nitrogen oxides (NOX),