What is stratospheric ozone primarily responsible for?

Stratospheric ozone plays a critical role in absorbing harmful ultraviolet (UV) radiation emitted by the sun. This absorption is essential for protecting living organisms on Earth, particularly humans, from the detrimental effects of UV radiation, which can lead to skin cancer, cataracts, and other health issues, as well as causing harm to ecosystems and wildlife.

The ozone layer, located in the stratosphere, acts as a shield by absorbing the majority of the sun's harmful UV rays, allowing only a small amount of UV radiation to reach the Earth's surface. This protective function of stratospheric ozone is vital for sustaining life, as excessive UV exposure can disrupt biological processes and lead to long-term environmental consequences.

While other atmospheric processes contribute to climate regulation and greenhouse gas dynamics, stratospheric ozone's primary and most crucial function lies in its ability to filter UV radiation, thus preserving ecosystems and protecting human health.