Complex sentence: John P. Smol, Ph.D. is a Canada Research Chair in Environmental Change, and a professor in the Department of Biology at Queen's University, is a Canadian ecologist, limnologist and paleolimnologist (see Paleolimnology).
Split into simpler sentences: John P. Smol, Ph.D. is the Canada Research Chair in Environmental Change and a professor in the Department of Biology at Queen's University. He is a Canadian ecologist, limnologist and paleolimnologist (see Paleolimnology).