After leaving ANU, he taught at
University College London. He then moved to the
University of Toronto, where he remained from 1970 to 1987. Thereafter he became Gustavus F. and Ann M. Swift Distinguished Service Professor at
University of Chicago. After his retirement he became a visiting fellow at his alma mater,
Australian National University. Other areas of research included
hydroacylation catalysis and the development of ligands that mimic the spectroscopic properties of the
blue copper proteins. After his retirement, Bosnich
questioned the
Royal Society's position on
climate change, which is the
scientific consensus on the subject. ==Awards and honours==