Dr. Graciela B. Raga is a senior scientist at the Center for Atmospheric Sciences at UNAM in Mexico City. She has been involved over the years in a variety of research projects in the atmospheric sciences, on topics such as: urban air pollution, black carbon, cloud microphysics, electrification and cloud dynamics, mesoscale meteorology and tropical cyclones, aerosol-cloud-climate interactions and short-lived climate pollutants. She is currently the head of the Micro and Mesoscale Interactions research group and the Editor in Chief of Atmosfera.