Demographer Jennifer Sciubba joins WIRED to answer the internet's questions about population and demographics. What is demography? What perspective can demographics provide about populations and societies? Do fertility rates really matter? Where do most people emigrate from when coming to the United States? And is immigration a net positive or negative? Answers to these questions and plenty more await on Population Support.Population Reference Bureau (PRB) promotes and supports evidence-based policies, practices, and decision-making to improve the health and well-being of people throughout the world. Find out more at prb.org. Follow us on LinkedIn or Facebook.Director: Lisandro Perez-ReyDirector of Photography: Charlie JordanEditor: Philip AndersonExpert: Jennifer SciubbaLine Producer: Joseph BuscemiAssociate Producer: Paul Gulyas; Brandon WhiteProduction Manager: Peter BrunetteCasting Producer: Nicholas SawyerCamera Operator: Christopher EustacheSound Mixer: Michael GugginoProduction Assistant: Kalia SimmsPost Production Supervisor: Christian OlguinPost Production Coordinator: Ian BryantSupervising Editor: Doug LarsenAdditional Editor: Jason Malizia