Is the Montreal Protocol Working?

Introduction The stratospheric ozone layer is a natural vital instalment of the globes atmosphere in erect for the option of demeanor as it is known. Ozone residing in the stratosphere is essential to absorbing UV radiation, including roughly naughty energy UV-B radiation, thus limiting the amount of money comer the reasons surface. Reductions in levels of stratospheric ozone means increases in setting levels of UV-B radiation causing significant negative make on human and other organisms health, terrestrial and aquatic ecosystems, and umpteen materials [Government of southernmost Australia, 2004; UNEP, 1998]. This has environmental, social and economic implications. Thus the importance of supervise and protect the ozone layer is of great significance. In the 1920s a chemic-techno-industrial change was heralded by the use of certain compounds containing atomic number 17 and bromine. This spurred the learning of more such compounds for use in a shap e of applicable products, such as domestic and mercenary refrigerators, aerosols and blaze extinguishers. These compounds proved invaluable to industry due to their chemical inertness, high volatility [Molina and Rowland, 1974] and low toxicity in the troposphere. alone they were a blessing in disguise.

By the 1970s an participation develop into the role that these compounds may play in the Earths atmosphere. In 1974 Molina and Rowland [1974] hypothesised the possibilities of CFCs, explicitly CFC-11 (CFCl3) and CFC-12 (CF2Cl2), having a destructive exploit on stratospheric ozone. Other compounds containing chlorine were not mentioned due t! o unknowns and enceinte uncertainties in their life times during that time. Approximately a decennium later(prenominal) Farman et al [1985] at the British Antarctic Survey observed exponential rates of ozone loss over the Antarctic during its terpsichore off time, which was further concreted a year later by Solomon et al [1986]. This spurred the international community into taking a proactive precautionary...If you indirect request to get a full essay, order it on our website: OrderCustomPaper.com

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