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International Ozone Day

The International Day for the Preservation of the Ozone Layer is every year on September 16. The United Nations General Assembly proposed the day in 1994 to commemorate the signing of the Montreal Protocol, which is an international treaty that phased out the use of substances that were responsible for causing holes in the ozone layer. The treaty was open for signatures on September 16, 1987 and was implemented by the countries who signed on January 1, 1989. Through the initiatives put in place by the Montreal Protocol, levels of ozone depleting chemicals have continued to decline, but the hole in the ozone layer still continues to be a problem, with the 2003 hole being the second largest in recorded history. However, the Montreal Protocol shows the power of cooperation between nations as all countries that are members of the United Nations have signed the treaty and its amendments. 

Items in Our Collection: 

Ozone crisis : the 15-year evolution of a sudden global emergency by Sharon Roan 

Global alert : the ozone pollution crisis by Jack Fishman and Robert Kalish

Fire & ice : the greenhouse effect, ozone depletion, and nuclear winter by David E Fisher 

 Web Resources:

NASA's Ozone Hole Watch