University of Saskatchewan researchers are studying the effects of microplastics in freshwater systems. (Photo: iStock image) USask water researcher discusses impact of microplastics on planet . University of Saskatchewan (USask) researcher Dr. Corinne Schuster-Wallace (PhD) recommends observing Earth Day by making impactful changes as a consumer. Kristen McEwenApr 4, 2024 It may seem like a simple answer, but the reason behind recognizing Earth Day is an import...