Greenpeace pushes for global ban on CFCs 1986 – 1995
The ozone layer absorbs ultraviolet radiation that can be very harmful to all forms of life. In 1974, however, scientists discovered that chlorofluorocarbons (CFCs), a chemical used in aerosol sprays, refrigerants, and the creation of synthetic materials, break down when they enter the stratosphere, and produce a chlorine atom, which then contributes to breaking down the ozone layer. In 1985, British Antarctic Survey scientists discovered a massive hole in the ozone layer above Antarctica.