Is the Montreal Protocol Working?

Introduction The stratospheric ozone layer is a natural vital fragment of the globes atmosphere in gild for the survival of the fittest 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 bill comer the landed estates 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 many another(prenominal) materials [Government of southernmost Australia, 2004; UNEP, 1998]. This has environmental, social and economic implications. Thus the importance of monitor and protect the ozone layer is of great significance. In the 1920s a chemical substance-techno-industrial change was heralded by the use of certain compounds containing atomic number 17 and bromine. This spurred the learning of mor e such compounds for use in a shape of applicable products, such as domestic and moneymaking(prenominal) 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. further they were a blessing in disguise.

By the 1970s an interestingness 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 destructiv e take on stratospheric ozone. Other comp! ounds containing chlorine were not mentioned due to unknowns and striking 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 stand 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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