Anna Ruth Halberstadt, a geoscience Ph.D. candidate from UMass Amherst, recently visited Winchester’s Acera School to share her research in sea level rise and sedimentology and discuss her upcoming expedition to Antarctica.Halberstadt led the elementary school students in a discussion about the importance of Antarctica as an international research station, the species that live there and the science-based activities — including mapping the seafloor and studying sediment [...]