Dangers to the environment (1)
Advocates for the environment have always believed that such problems as pollution, ozone layer depletion, and global warming demand international solutions. This was confirmed by the 1986 fire at the Chernobyl nuclear power plant in Ukraine, which released radiation that contaminated water and livestock in large areas of Europe. With a view to reducing pollution at home to help protect the earth’s environment, wholesale replica designer handbags, representatives form 178 nations met at the United Nations conference on environment and development the earth summit in Brazil in 1992. The conference was deemed a significant step toward international cooperation to protect the environment. Among the problems calling for immediate tackling are:
Ozone depletion. Some greenhouse gases called chlorofluorocarbons destroy earth’s ozone layer. Ozone is distributed in a thin layer in earth’s atmosphere and shields earth from the sun’s dangerous ultraviolet rays. Increased exposure to ultraviolet radiation weakens the human body’s immune system, cause skin cancer and yey damage, wholesale designer handbags and destroys crops and microorganisms. CFCs are a family of chemicals that are often used in cleaning solvents and aerosol spray cans and as coolants in refrigerators and air conditioners.
In 1993, a study by the British Antarctic survey revealed that a hole in the ozone layer over Antarctica covered 8.9 million square miles, an area more than twice the sice of the United States. Scientists say, however, wholesale coach handbags, that the size of the hole as measured in 1993 does not mean that an international effort to cut levels of ozone-eating chemicals is not working. These chemicals take several years to drift over Antarctica, so the effects of current reductions will not be noticed until the next century.
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