Ban Ki-moon message 2015
Message from United Nations Secretary-General for International Day for the Preservation of the Ozone Layer 16 September 2015: “Not so long ago, humanity stood on the brink of a self-inflicted catastrophe. Our use of ozone-depleting substances such as chlorofluorocarbons (CFCs) had torn a hole in the ozone layer that protects us from the sun’s harmful ultraviolet radiation. But we tackled […]