Congratulations to group member Kris Hajny who successfully defended his dissertation today. Dr. Hajny is staying with the lab as a Postdoctoral Research Associate with Dr. Shepson at Stonybrook. He will be working on an upcoming arctic field campaign CHemistry in the Arctic: Clouds, Halogens, and Aerosols (CHACHA), and running inversion analyses for the years of flight data collected around Indianapolis.