Ozone Layer & Chlorofluorocarbons (CFCs)
What is Ozone?-Ozone is a gas made up of three oxygen atoms (O3). It occurs naturally in small (trace) amounts in the upper atmosphere (the stratosphere). O + O3 → 2 O2 Chlorofluorocarbons and ozone Many people have heard that chemicals called CFCs, short for chlorofluorocarbons, cause the ozone hole. CFCs escape into the atmosphere…