Learn about the career of a geographer, a social scientist that uses knowledge of climate, culture, and topography to address a whole host of problems the world faces. Find out the educational requirements and what the job entails in...

Kim Preshoff explains how using a visual tool called a population pyramid helps policymakers and social scientists make sense of the statistics, using three different countries' pyramids as examples. [5:01]

The NOVA documentary, The Cannabis Question, explores the story of cannabis from the criminalization that has disproportionately harmed communities of color to the latest medical understanding of the plant. What risks does cannabis pose...