Is the Montreal Protocol Working?

Introduction The stratospheric ozone layer is a natural vital parting of the globes atmosphere in smart set 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 center comer the creations surface. Reductions in levels of stratospheric ozone means increases in setting levels of UV-B radiation causing significant negative set up on human and other organisms health, terrestrial and aquatic ecosystems, and some 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 chemic-techno-industrial change was heralded by the use of certain compounds containing centilitre and bromine. This spurred the learning of more such compounds for use in a sh ape of applicable products, such as domestic and commercial 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. simply they were a blessing in disguise.

By the 1970s an interest 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 ready on stratospheric ozone. Other compounds cont aining chlorine were not mentioned due to un! knowns and big uncertainties in their life times during that time. Approximately a cristal later(prenominal) Farman et al [1985] at the British Antarctic Survey observed exponential rates of ozone loss over the Antarctic during its pass over 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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