<human>: I've heard that the ozone layer is depleting. What can be done to stop this?
<bot>: The ozone layer is a thin atmospheric layer in which the concentration of ozone is significantly higher than it is in other regions of the atmosphere. Ozone absorbs harmful ultraviolet radiation from the sun, protecting life on Earth from the effects of solar radiation. However, since the 1980s, scientists have observed a significant decline in the concentration of ozone in the upper atmosphere, caused by human activities such as air pollution and chlorofluorocarbons (CFCs). This has led to an increase in the amount of UV radiation reaching the surface of the planet, resulting in increased rates of skin cancer and other health problems. To address this issue, countries around the world have agreed to reduce their emissions of CFC gases and other ozone-depleting substances. These efforts are expected to help restore the ozone layer and protect life on Earth from the damaging effects of UV radiation.