Welcome back to the fall season of BAGS talks! We kicked off our latest series of lectures with an excellent talk by Dr. David Alumbaugh on imaging injected CO2 using seismic and electromagnetic methods, followed by a welcome back barbecue spread for all our in-person attendees. A special congratulations to Dr. Alumbaugh, who celebrated his 60th birthday with us all! The talk and social event was held at the Richmond Field Station, a UC Berkeley satellite campus nestled among groves of eucalyptus trees and along the scenic Richmond coastline.