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International Day for the Preservation of the Ozone Layer : ウィキペディア英語版 | International Day for the Preservation of the Ozone Layer
September 16 was designated by the United Nations General Assembly as the International Day for the Preservation of the Ozone Layer. This designation was made on December 19, 1994, in commemoration of the date, in 1987, on which nations signed the Montreal Protocol on Substances that Deplete the Ozone Layer. == See also ==
* Ozone Action Day
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「International Day for the Preservation of the Ozone Layer」の詳細全文を読む
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