Ellie Murray and Lucy D'Agostino McGowan chat about communicating uncertainty, how air pollution policy is determined, and whether causal inference is a fad with Dr. Roger Peng from Johns Hopkins Bloomberg School of Public Health.

Follow along on Twitter:

• The American Journal of Epidemiology: @AmJEpi
• Ellie: @EpiEllie
• Lucy: @LucyStats
• Roger: @rdpeng

🎶 Our intro/outro music is courtesy of Joseph McDade.

👩‍🎨 Our artwork is by Allison Horst.