The ozone layer is critically important because it absorbs about 97% to 99% of the sun's harmful ultraviolet (UV-B) radiation. This protective function is essential for life on Earth as it prevents DNA damage in living organisms, reducing risks such as skin cancer, cataracts, and harm to plants and marine ecosystems. Without the ozone layer, increased UV radiation would make the planet much less habitable. Additionally, the ozone layer helps regulate the temperature structure of the atmosphere, keeping the stratosphere warm and stabilizing upper atmospheric circulation patterns. It also indirectly impacts climate by influencing atmospheric moisture and heat retention. In summary, the ozone layer:
- Shields living organisms from dangerous UV-B radiation,
- Protects human health and ecosystems,
- Maintains atmospheric temperature and stability,
- Affects global climate regulation.
These collective roles make the ozone layer vital for sustaining life and environmental balance on Earth.
