Summary:
- The ozone hole over Antarctica, which was a major environmental concern in the past, is showing signs of shrinking, according to scientists.
- This is a positive development, as the ozone layer helps protect the Earth from harmful ultraviolet radiation from the sun, which can cause skin cancer and other health problems.
- The recovery of the ozone layer is attributed to the successful implementation of the Montreal Protocol, an international agreement that phased out the use of ozone-depleting substances, such as chlorofluorocarbons (CFCs).