Planet Earth . Many Presidents and Prime Ministers present themselves as the saviors of the ozone layer - the leaders who rescued the fragile atmospheric shield that protects all living things from the sun 's dangerous ultraviolet rays . This airbrushed view history starts in 1985 , when scientists realized that an ozone hole had opened over the South Pole - the result of an atmospheric assault by man-made chemicals called chlorofluorocarbons , which are commonly used in refrigerators and air conditioners . Soon after this disturbing...











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