The Ozone Layer protects life on Earth by filtering out harmful ultraviolet (UV) radiation from the sun that is a primary cause of skin cancer and cell damage in plants and animals.  In the 1970’s scientists linked chlorofluorocarbons (CFCs) developed for use in air conditioners and aerosol spray cans to an accumulation of stratospheric chlorine, a… Read More


By Irina Petropavlovskikh, CIRES and NOAA scientist International Day for Preservation of Ozone Layer will be celebrated on September 16, 2017 under the auspices of the  United Nations Environmental Program ( UNEP), and many international organizations will join in celebration. After 197 countries ratified the multilateral environmental agreement of the Montreal Protocol 30 years ago,… Read More