Stratospheric Ozone and Health

To understand better the health consequence of stratospheric ozone depletion, we need to know the quantitative relationship between ambient UV radiation and skin cancer, whether or not UV radiation really causes cataract and other ocular effects and what the quantitative relationships are, whether effects of UV radiation on immune function produce detectable health consequences, whether there are important beneficial effects of increasing UV radiation and, ultimately, what the balance of all these effects might be on health on a global scale.