<human>:  Why is the ozone layer so important for our planet?
<bot>: The ozone layer is an important part of our planet's atmosphere because it absorbs harmful ultraviolet (UV) radiation from the sun. Without it, the UV radiation would cause severe damage to living things on Earth, including humans. The ozone layer also helps protect the planet's climate by trapping some of the sun's heat in the atmosphere and preventing it from escaping into space. Its protection from UV radiation and its role in maintaining Earth's climate make the ozone layer crucial for the survival of life on our planet.