Ozone Depletion Essay

The Ozone social class is find in the mankinds amphetamine aura. It acts as a barrier and absorbs mass of UV beam of light before it constitutes mans come out. Ozone is made up of deuce-ace oxygen segments that are natur tout ensembley occurring molecules. The depletion of the ozone has acquire a worldwide issue and is caused by the release of CFCs into the atmosphere. CFCs release centilitre atoms which arise down ozone molecules. The depletion of the ozone layer threatens to leave emotional state on Earth unprotected from UV light beam. Chlorofluorocarbons (CFCs) contain atomic number 17, fluorine and carbon atoms.CFCs buttocks be found in dot cans, in the plastics industry and in refrigerants. When UV rays in the upper atmosphere hit CFC molecules, a carbon-atomic number 17 bond breaks exit a item-by-item chlorine atom. This chlorine atom reacts with the ozone molecule make it to sectionalisation. The breakdown of ozone leaves an ordinary oxygen molecule (O2 ) as hygienic as a chlorine monoxide molecule. Because UV radiation breaks oxygen molecules into single oxygen atoms, the single oxygen atom wherefore breaks up the chlorine monoxide.With the chlorine atom left by itself, it is then suitable to repeat the process of geological fault down more ozone molecules. However, the depletion of the ozone is not totally caused by CFCs. Halons, CH3CCI, CCI4, HCFCs, hydrobromofluorocarbons and methyl bromide are all cogitate with ozone depletion leaving keep on earth vulnerable to the cause from exposure to UV radiation. With the depletion of the ozone, UV radiation becomes more accessible to life on Earth and effects from this radiation follow.Since ozone filters UV radiation, with ozone depletion comes higher(prenominal) levels of UV radiation strike the surface of the Earth. The increase in ultra-violet rays thus mean higher risk of hide cancers and cataracts in humans and animals. Higher levels of this radiation also defames mate rials such as plastics, harm certain crops as well as marine animals. Extra UV radiation deters the natural procreative cycle of phytoplankton (a single celled being at the basis of the food chain) Scientists fear that the population of separate species will decrease with the loss of phytoplankton.Since the depletion of the ozone layer, researchers founder recognised obvious deviations in the reproductive rates of fish, shrimp and crabs as well as frogs and salamanders. These changes in organisms reproductive rates and higher risks of skin cancer and cataracts can all be linked to the depletion of the ozone layer. Since CFCs have been released into the atmosphere, Earths naturally occurring ozone layer has been depleting. The ozone layer above the Antarctic has been majorly affected by CFC pollution since the mid 1980s.However, CFCs were illegalise in 1987 to prevent further damage to the ozone layer. Results of ozone depletion can be dramatically seen end-to-end the southern spring and summer when the fair weather shines for longer periods at a time. collectable to chlorine reacting with the Ultra-violet rays, ozone is destroyed on a scale of up to 65% during these months. level off though CFCs were banned in the 1980s scientists estimate it will take another(prenominal) 50 years for chlorine levels to reaping to their natural levels.With CFCs being emitted into the atmosphere, the breakdown of ozone has resulted. Without the ozone filtering UV rays, higher levels of radiation are able to hit the Earths surface leading to higher rates in skin cancer and cataracts. Ozone depletion has also been linked with the obstruction of organisms natural reproductive cycles. Although they were banned in the late 1980s, CFCs will persist in to be present in the atmosphere for many more years causing ozone depletion to remain a worldwide issue.