Sept 16 World Ozone Day
September 16, World Ozone Day, commemorates the signing of the Montreal Protocol, an international treaty created in 1987 designed to protect earth's ozone layer (stratosphere) by phasing out the production of numerous substances believed to be responsible for ozone depletion. The ozone layer prevents most harmful UVB wavelengths of ultraviolet light from passing through the Earth's atmosphere. The official name of the holiday, given by the U.N. is "International Day for the Preservation of the Ozone Layer."
The holiday encourages international cooperation across many disciplines to find solutions to the challenge of ozone depletion and related environmental concerns. Many celebratory activities for World Ozone Day center around public education of the effects of humanities interaction with the ozone layer and include distribution of posters, photographic and artistic displays of the heavenlies, grade school plays and productions to help young people understand current and future ozone-related events, speeches, talks and conferences discussing current research and solutions.