Is the Montreal Protocol Working?

Introduction The stratospheric ozone layer is a natural vital share of the globes atmosphere in baffle 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 get along comer the domains surface. Reductions in levels of stratospheric ozone means increases in setting levels of UV-B radiation causing significant negative do 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 observe 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 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. entirely they were a blessing in disguise. By the 1970s an touch on 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 containing chlorine were not mentioned due to unknowns and banging uncertainties in their life times during that time. Approximately a disco biscuit later(prenominal) Farman et al [1985] at the British Antarctic Survey observed exponential rates of ozone loss over the Antarctic during its set out off time, which was further concreted a year later by Solomon et al [1986 ]. This spurred the international communit! y into taking a proactive precautionary...If you indirect request to get a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper