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On the front page of the Toronto Star on May 27, 1992, was a short story that announced a change to the weather report. Environment Canada would begin publishing forecasts of the intensity of ultraviolet radiation from the sun. It was information they hoped Canadians would use to avoid sunburns and the attendant risk of skin cancer. Today is the 25th birthday of the UV index. The scale was invented by three Toronto-based Environment Canada scientists. It has since been adopted around the world. [Source: Toronto Star]
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