It took Charlie Rolsky a while to get his academic pursuits on track toward a career, but the ASU doctoral student found motivation through his work in the university’s Center for Environmental Health Engineering directed by Fulton Schools Professor Rolf Halden. Halden says he foresees Rolsky making significant contributions to society through his studies — both in the research lab and in the field — of the growing threat of environmental contamination from the tons of plastic waste accumulating in the world’s oceans.