Biology prof. Peter Leavitt weighs in on Washington algae and the Sask. But we also wanted to understand what went wrong, so we contacted the U of R’s algae expert — water quality researcher Peter Leavitt. South of the university, you often see ducks and geese paddling through clumps of the green stuff. “They will see green water, somebody throws a ball in. But the gross green goo of summer is here to stay.