Since the ozone layer absorbs ultraviolet light from the sun, ozone layer depletion can lead to increased rates skin cancer, eye damage and other adverse consequences. (sciencedaily.com)
In this upper atmosphere, ozone is made when ultraviolet light from the sun splits an oxygen molecule (O2), forming two single oxygen atoms. (science.howstuffworks.com)
There is strong evidence that some bacteria can survive strong ultraviolet light from the sun and other space radiation. (space.com)