Our climate is changing and the world is warming. Our health and well-being will be impacted. What does this have to do with skin? As out first line of defense we rely on our skin to be a barrier and protector. Dr. Mary Williams, Clinical Professor of Dermatology at UCSF, looks at the effects of air pollution and climate change on the skin. Series: "Mini Medical School for the Public" [Health and Medicine] [Show ID: 35927]