Is the Montreal Protocol Working?

Introduction
The stratospheric ozone layer is a natural vital component of the globes atmosphere in order for the survival 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 comer the Earths surface. Reductions in levels of stratospheric ozone means increases in setting levels of UV-B radiation causing significant negative effects on human and other organisms health, terrestrial and aquatic ecosystems, and many materials [Government of southernmost Australia, 2004; UNEP, 1998]. This has environmental, social and economic implications. Thus the importance of monitoring and protect the ozone layer is of great significance.

In the 1920s a chemical-techno-industrial change was heralded by the use of certain compounds containing chlorine and bromine. This spurred the learning of more such compounds for use in a shape 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. But 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 effect on stratospheric ozone. Other compounds containing chlorine were not mentioned due to unknowns and large uncertainties in their life times during that time. Approximately a decade later(prenominal) Farman et al [1985] at the British Antarctic Survey ascertained exponential rates of ozone loss over the Antarctic during its jump 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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