The term "ozone depletion" refers to the gradual reduction of the ozone layer in the Earth's atmosphere. This phenomenon is caused by the release of certain chemicals, such as chlorofluorocarbons (CFCs), which break down the ozone molecules. There are several synonyms that can be used to describe this process including ozone hole, ozone thinning, ozone layer depletion, and stratospheric ozone depletion. Each term refers to the same issue, but they may be used in different contexts. Regardless of the terminology used, it is important to understand the serious consequences of ozone depletion, such as increased skin cancer rates and damage to plant and animal life.