Environmental impacts of chlorofluorocarbons

ENVIRONMENTAL IMPACTS OF CHLOROFLUOROCARBONS
1. GLOBAL WARMING: One of the six established Green House Gases (GHG) is hydrofluorocarbon refrigerant, which also belongs to the group of chlorofluorocarbons. The other GHGs are carbon dioxide, nitrous oxide, methane, perfluorocarbon, and sulphur hexafluoride. The impact of these gases, from various human activities, on the climate of the earth has become a major focus of attention worldwide since the last decade. This is because their release into the atmosphere warms the surface of the earth by retaining heat (infra-red radiation) that would otherwise escape from the lower atmosphere: thus rising the global temperature. Because of the greenhouse effect, the climate will become hotter, wetter and cloudier. Changes in the climate involve not only the atmosphere, but also the world’s oceans, ice masses, the global land surfaces and bio-mass. For Nigeria and other developing countries, where reliance on outdated models, imported as fairly used products, is very common, the situation is critical. We seem, therefore, to accept increasing emission of GHGs as a necessary evil if we are to raise our living standards..... click here for more (www.techengineworld.com)