1K views · 28 reactions | In our new video series, “Take 2,” faculty and researchers from Harvard T.H. Chan School of Public Health provide the lowdown on a compelling, engaging question in global health–think of it as Public Health 101. In this video, Douglas Dockery, chair of the Department of Environmental Health, talks about the how air pollution can reduce people’s life expectancy and why it’s a global problem. | Harvard T.H. Chan School of Public Health | Facebook