Leadership & Staff Roberto Gwiazda Research Specialist [javascript protected email address] Roberto is a research specialist, reporting to Charlie Paull. He has a strong background in earth sciences, including several years as a researcher at UCSC, primarily in Environmental Toxicology. He has a PhD in Geochemistry from Columbia University, New York. He conducted his undergraduate studies at the Hebrew University of Jerusalem, Israel, where he graduated cum laude, with a Bachelor’s in Geology.