Depletion
[ Language & Communication Skills ]
Contents
Abstract | 1 | Introduction | 2 | Findings: Factor of ozone depletion | 3 | Effect of ozone depletion | 4 | Solution of ozone layer | 5-6 | Conclusion | 7 | Recommendation | 8 | References | 9-10 | Appendices | 11-13 | Bibliography | 14 |
Abstract
Ozone is concentrated in the ozone layer , which is located in the stratosphere. It plays an important role to protect humans and other life from ultraviolet light. Unfortunately, Chlorofluorocarbons (CFCs) have been released into the atmosphere and have contributed to the depletion of this important protective layer. This will cause humans suffering like skin cancer and UV radiation may kill plankton. CFCs will also cause global warming. We should take action to protect our ozone layer. We have to ban the use of CFCs products. United State have already signed a treaty to phase out CFC production, known as the Montreal Protocol. Besides, we should always unplug or switch off electronic instruments when they are not in use. We can plant trees as they absorb the UV rays and try to use products which are labeled ‘Ozone-Friendly’. In conclusion, we should start now to care for and save our earth.
Introduction
Ozone is a gas that occurs naturally in our atmosphere. Most of it is concentrated in the ozone layer, a region located in the stratosphere several miles above the surface of the Earth. Although ozone represents only a small fraction of the gas present in the atmosphere, it plays a vital role by shielding humans and other life from harmful ultraviolet light from the Sun. In fact, a major hole in the ozone layer above the Antarctica skyline now threatens the continent badly. There are plenty of causes and effects of ozone depletion, CFC emission being one.
Findings
Factor of Ozone Depletion
Human activities in the last several decades have produced chemicals, such as
References: Worrest, R. C., and D. P. Häder. 1989. Effects of stratospheric ozone depletion on marine organisms. Environmental Conservation 16: 261-63. Zurer, P. S. 1992. Industry, consumers prepare for compliance with pending CFC ban. Chemical and Engineering News, June 22: 7-13. United Nations. 1992. Montreal Protocol on Substances That Deplete the Ozone Layer. In Montreal Protocol Handbook. Paris: UNEP Industry and Environment Programme Activity Centre. United Nations. 1992. Vienna Convention for the protection of the Ozone Layer. In Montreal Protocol Handbook. Paris: UNEP Industry and Environment Programme Activity Centre. Last, J. M. 1993. Global change: Ozone depletion, greenhouse warming and public health. Annual Review of Public Health 14: 115-36.