Carnegie Museum of Natural History’s Section of Minerals and Earth Sciences consists of 30,000 specimens dating back to the 19th Century. Get to know the two incredible scientists tasked with stewarding this collection, as well as answering all-important questions about the environment. Assistant Curator of Minerals Travis Olds, a mineralogist, crystallographer, and materials scientist, and Assistant Curator of Earth Sciences Carla Rosenfeld, an environmental biogeochemist are joining forces here in Pittsburgh to better understand the impact of human activity. Hear more about their research, past and present, and why they’re excited to join the Carnegie Museums team.